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|1. John's Combinatory Logic Playground |
Online article by John Tromp. Kolmogorov complexity is a recursion theoretic characterisation of randomness.
John's Pictured above you can see on the left the 210 bit binary lambda calculus self-interpreter, and on the right the 272 bit binary combinatory logic self-interpreter Both are explained in detail in my latest paper available in PostScript and PDF . This design of a minimalistic universal computer was motivated by my desire to come up with a concrete definition of Kolmogorov Complexity , which studies randomness of individual objects. All ideas in the paper have been implemented in the the wonderfully elegant Haskell language, which is basically pure typed lambda calculus with lots of syntactic sugar on top. The implementation also offers a Main module that lets you run the universal binary lambda computer on the command-line argument joined to standard input as a list of bytes: main = do [program] The first example is the half-byte program for identity=^x.x, while the second is the ten-and-a-half-byte program for stutter=^l l(^h^t^n^z z h (^z z h (stutter t)))nil. This online course at Oberlin College provides a very readable introduction to combinators.
|3. 20th WCP: Dual Identity Combinators |
Article by Katalin BimbÂ³ presented at the 20th World Congress of Philosophy. Investigates the addition of identity combinators, in the formulaeas-types sense, to Combinatory Logic.
|Logic and Philosophy of Logic Dual Identity Combinators Katalin BimbÃ³ |
email@example.com ABSTRACT: This paper offers an analysis of the effect of the identity combinators in dual systems. The result is based on an easy technical trick, namely, that the identity combinators collapse all the combinators which are dual with respect to them. l l -calculi in which the functions and/or the application operation are bidirectional. The last section of the paper shows the devastating effect the identity combinators have for a dual system: they half trivialize simple combinatory bases, although they are not sufficient to cause real triviality for what cancellative combinators are needed. Introduction R B C W I C S I 1. Dual combinators. Pure combinators operate on left associated sequences of objects. The result of an application of a combinator is a sequence made out of some of the objects on the left (possibly with repetitions) and parentheses scattered across: Q x x n x i x i m where any x i j j m ) is x k k n ) for some k , and the sequence on the right might be associated arbitrarily. The parentheses on the left of the identity are frequently dropped, since left association is taken to be the default. To recall the most familiar combinators as an illustration of the above general statement we have:
|4. Combinatory Logic -- From Wolfram MathWorld |
The system of Combinatory Logic is extremely fundamental, in that there are a relatively small finite numbers of atoms, axioms, and elementary rules.
|Search Site Algebra |
Calculus and Analysis ... General Logic
Combinatory Logic A fundamental system of logic based on the concept of a generalized function whose argument is also a function (Schönfinkel 1924). This mathematical discipline was subsequently termed combinatory logic by Curry and " -conversion" or " lambda calculus " by Church. The system of combinatory logic is extremely fundamental, in that there are a relatively small finite numbers of atoms, axioms, and elementary rules. Despite the fact that the system contains no formal variables, it can be used for doing anything that can be done with variables in more usual systems (Curry 1977, p. 119). SEE ALSO: Combinator Lambda Calculus [Pages Linking Here] REFERENCES: Curry, H. B. "Combinatory Logic." §3D5 in Foundations of Mathematical Logic. New York: Dover, pp. 117-119, 1977. Curry, H. and Feys, R. Combinatory Logic, Vol. 1. Amsterdam, Netherlands: North-Holland, 1958. Hindley, J. R.; Lercher, B.; Seldin, J. P. Introduction to Combinatory Logic.
|5. Mathematical Sciences, Richard Statman |
Carnegie Mellon University Theory of computation, lambda calculus, Combinatory Logic.
Graduate Students ...
Richard Statman Professor
Ph.D., Stanford University Office: Wean Hall 7214
Phone: (412) 268-8475
Research My principal research interests lie in the theory of computation with special emphasis on symbolic computation. In particular, my current research involves lambda calculus and combinatory algebra. This area underwent extensive development in the first half of this century, and then lay dormant until Dana Scott's fundamental work in the 1970's. Part of what has emerged from Scott's work is that lambda calculus forms the foundation of functional programming at both the semantic and syntactic levels. As a result, the area has been revived by an influx of theoretical problems directly related to design and implementation issues.
Selected Publications The omega rule is sigma-zero-three hard (with Benedetto Intrigilia), LICS'04 On the lambda Y calculus, LICS '02 Church's lambda delta calculus, LPR '00 The word problem for combinators, RTA '00
|6. Rusty Lusk's Home Page |
Barendregt Barendregt81 defines Combinatory Logic as an equational system satisfying the combinators S and K with (( Sx)y)z = (xz)(yz) and (Kx)y = x.
|Mathematics and Computer Science Division Projects |
HTML versions of older papers
Ewing ("Rusty") Lusk
Argonne Distinguished Fellow
Mathematics and Computer Science Division
Argonne National Laboratory
9700 South Cass Avenue Argonne, Illinois 60439 Phone Fax email lusk at mcs.anl.gov Biographical Sketch Ewing Lusk received his B.A. in mathematics from the University of Notre Dame in 1965 and his Ph.D. in mathematics from the University of Maryland in 1970. He is currently a senior computer scientist in the Mathematics and Computer Science Division at Argonne National Laboratory. His current projects include implementation of the MPI Message-Passing Standard, parallel performance analysis tools, and system software for clusters. He is a leading member of the team responsible for MPICH implementation of the MPI message-passing interface standard. He is the author of five books and more than a hundred research articles in mathematics, automated deduction, and parallel computing. Current Research Interests Parallel performance tools including Jumpshot and Upshot Cobalt Scalable component-based systems software Some Recent Publications 1. N. Desai, A. Lusk, R. Bradshaw, and E. Lusk, "MPISH: A Parallel Shell for MPI Programs," in Proc. of the 12th European PVM/MPI Users' Group meeting, Recent Advances n Parallel Virtual Machine and Message Passing Interface, Lecture Notes in Computer Science 3666, Springer, 2005, pp. 333-342
|7. Topics In Logic And Proof Theory |
Brief introductions to Combinatory Logic, the incompleteness theorems and independence results, by Andrew D Burbanks.
|8. MainFrame: The Lambda-calculus, Combinatory Logic, And Type Systems |
Combinatory Logic shows that bound variables can be eliminated without loss of expressiveness. It has applications both in the foundations of mathematics
The Lambda-calculus, Combinatory Logic, and Type Systems
Overview: Three interrelated topics at the heart of logic and computer science. The -Calculus A pure calculus of functional abstraction and function application, with applications throughout logic and computer science. Types The -calculus is good tool for exploring type systems, invaluable both in the foundations of mathematics and for practical programming languages. Pure Type Systems A further generalisation and systematic presentation of the class of type systems found in the -cube. Combinators Combinatory logic shows that bound variables can be eliminated without loss of expressiveness. It has applications both in the foundations of mathematics and in the implementation of functional programming languages. Programming Languages The connections between the lambda-calculus and programming languages are diverse and pervasive. Type systems are an important aspect of programming language design. The -cube A graphical presentation of the relationship between combinatory logic, lambda calculi and related logical systems. The -cube A graphical presentation of the relationship between various typed -calculi, illuminating the structure of Coquand's Calculus of Constructions.
|9. J Roger Hindley |
University of Wales, Swansea Lambda-calculus, Combinatory Logic and type-theory.
|10. Combinatory Logic Elements |
In the last chapter we met several truth tables of single logic elements. But we can also use Truth Tables to represnt Combinatory Logic.
Combinatory Logic Elements
De Morgan's Law in Combinatory Logic Karnaugh Maps ... Simplification of Groups of Four In the last chapter we met several truth tables of single logic elements. But we can also use Truth Tables to represnt combinatory logic. We saw a simple example of one such Truth table in Chapter 7 . But note, this only applies to logic without memory.
- Disjunctive Form Expressions
Disjunctive Form Expressions We can represent any output bit of some combinatory logic in an expression using just the inputs and Boolean operators. The following is an example. Here is the diagram for the logic:
And here is the Truth Table and the Boolean expression for the logic: It is easy to see that the Boolean expression can quite simply be read off from either the Truth Table or the logic diagram (as we will see later, we actually make the logic diagram from the Boolean Expression). Looking at the diagram, we see that the result is an OR from 3 other expressions (hence the '+' signs). For the top bit, a TRUE output is obtained if A is FALSE, B is TRUE, and C is FALSE (hence the first part of the expression is Â¬A.B.Â¬C). If we go through the rest of the diagram we see that it all matches. The method is even simpler from the Truth Table. All you need to do is say when a TRUE output (X) occurs and convert the words to symbols. To illustrate:
|11. Combinatory Logic - HaskellWiki |
Albeit having precursors, it was Moses SchÃ¶nfinkel who explored first Combinatory Logic. Later it has been continued by Haskell B. Curry.
|12. Syntactic Pattern-Matching And Combinatory Logic -- From Wolfram Library Archive |
Given a pattern and a string, this work addresses the problem of finding all instantiations of the variables forming the pattern to match those appearing in
Syntactic Pattern-Matching and Combinatory Logic
Jaime Rangel-MondragÃ³n Organization: Universidad Autonoma de QuerÃ©taro Department: Facultad de Informatica Journal / Anthology
Instituto Tecnologico y de Estudios Superiores de Monterrey. Research Report Year: Description
Given a pattern and a string, this work addresses the problem of finding all instantiations of the variables forming the pattern to match those appearing in the string. The work adopts a pragmatic approach relying heavily on functional programming techniques using the language Mathematica . Two solutions are described; the first one using a recursive approach and the second one using Mathematica 's argument-matching mechanism. An application to Combinatory Logic is offered towards solving the problem of finding the geneology of a given combinator via a family of given combinators.
Applied Mathematics Computer Science Mathematica Technology ... Logic Keywords
Pattern-matching, unification, parsing, combinatory logic, combinators, genealogies.
|13. Binary Lambda Calculus And Combinatory Logic | Lambda The Ultimate |
Pictured you can see the 210 bit binary lambda calculus selfinterpreter, and the 272 bit binary Combinatory Logic self-interpreter.
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Binary Lambda Calculus and Combinatory Logic While Anton was waxing about , I figured that Occam's Razor would be the type of proof one would postulate when giving the nod to Lambda Calculus over Universal Turing Machines. This leads inexorably to the question of what is the smallest (as measured in binary bits) Turing Machine that can possibly be constructed. John Tromp provides an answer to this question in his always fun Lambda Calculus and Combinatory Logic Playground Pictured you can see the 210 bit binary lambda calculus self-interpreter, and the 272 bit binary combinatory logic self-interpreter. Both are explained in detail in my latest paper available in PostScript and PDF . This design of a minimalistic universal computer was motivated by my desire to come up with a concrete definition of Kolmogorov Complexity, which studies randomness of individual objects. All ideas in the paper have been implemented in the the wonderfully elegant Haskell language, which is basically pure typed lambda calculus with lots of syntactic sugar on top.
|15. Combinator Birds |
|Combinator Birds Function Abstraction Symbol Bird Combinator SK Combinator abc.a(bc) B Bluebird S(KS)K ((S(KS))K) abcd.a(bcd) B Blackbird BBB ((S(K((S(KS))K)))((S(KS))K)) abcde.a(bcde) B Bunting B(BBB)B ((S(K((S(K((S(KS))K)))((S(KS))K))))((S(KS))K)) abcd.a(b(cd)) B Becard B(BB)B ((S(K((S(K((S(KS))K)))((S(KS))K))))((S(KS))K)) abc.acb C Cardinal S(BBS)(KK) ((S((S(K((S(KS))K)))S))(KK)) abcd.ab(cd) D Dove BB (S(K((S(KS))K))) abcde.abc(de) D Dickcissel B(BB) (S(K(S(K((S(KS))K))))) abcde.a(bc)(de) D Dovekies BB(BB) ((S(K((S(KS))K)))(S(K((S(KS))K)))) abcde.ab(cde) E Eagle B(BBB) (S(K((S(K((S(KS))K)))((S(KS))K)))) abcdefg.a(bcd)(efg) Bald Eagle B(BBB)(B(BBB)) ((S(K((S(K((S(KS))K)))((S(KS))K))))(S(K((S(K((S(KS))K)))((S(KS))K))))) abc.cba F Finch ETTET ((S(K((S((SK)K))(K((S(K(S((SK)K))))K)))))((S(K((S(K((S(KS))K)))((S(KS))K))))((S(K(S((SK)K))))K))) abcd.ad(bc) G Goldfinch BBC ((S(K((S(KS))K)))((S((S(K((S(KS))K)))S))(KK))) abc.abcb H Hummingbird BW(BC) ((S(K((S(K(S((S(K((S((SK)K))((SK)K))))((S(K((S(KS))K)))((S(K(S((SK)K))))K))))))K)))(S(K((S((S(K((S(KS))K)))S))(KK))))) a.a|
|16. Combinatory Logic From FOLDOC |
Nearby terms colour theories of Â« combination Â« combinator Â« Combinatory Logic Â» communalism Â» communication system Â» communism.
|18. Binary Combinatory Logic - Esolang |
Binary Combinatory Logic (BCL) is a complete formulation of Combinatory Logic (CL) using only the symbols 0 and 1, together with two termrewriting rules.
Binary combinatory logic
From Esolang Jump to: navigation search Binary combinatory logic (BCL) is a complete formulation of combinatory logic (CL) using only the symbols and , together with two term-rewriting rules. BCL has applications in the theory of program-size complexity ( Kolmogorov complexity
Contents Semantics See also ...
edit Semantics Rewriting rules for subterms of a given term (parsing from the left): where x y , and z are arbitrary terms. (Note, for example, that because parsing is from the left, is not a subterm of The terms and correspond, respectively, to the K and S basis combinators of CL, and the "prefix " acts as a left parenthesis (which is sufficient for disambiguation in a CL expression). There are four equivalent formulations of BCL, depending on the manner of encoding the triplet (left-parenthesis, K, S). These are (as above), , and
edit See also
edit External resources
Retrieved from " http://www.esolangs.org/wiki/Binary_combinatory_logic
- John's Lambda Calculus and Combinatory Logic Playground
|19. Combinatory Logic |
Combinatory Logic. A system for reducing the operational notation of logic, mathematics or a functional language to a sequence of modifications to the input
|The Free Online Dictionary of Computing ( http://foldoc.doc.ic.ac.uk/ firstname.lastname@example.org Previous: combinator Next: Comdex |
combinatory logic A system for reducing the operational notation of logic , mathematics or a functional language to a sequence of modifications to the input data structure. First introduced in the 1920's by Schoenfinkel. Re-introduced independently by Haskell Curry in the late 1920's (who quickly learned of Schoenfinkel's work after he had the idea). Curry is really responsible for most of the development, at least up until work with Feys in 1958. See combinator
|21. Combinatory Logic - Wikipedia |
Combinatory Logic is a simplified model of computation, used in computability theory (the study of what can be computed) and proof theory (the study of what
|22. Combinatory Logic - Wiktionary |
edit English. Wikipedia has an article on. Combinatory Logic Combinatory Logic (uncountable). (computer science) Model of computation based on
|23. JSTOR Elements Of Combinatory Logic. |
Elements of Combinatory Logic. Yale University Press, New Haven and London 1974, viii + 162 pp. What is Combinatory Logic about?
|24. Reversible Combinatory Logic |
Combinatory Logic is a variant of the $\lambda$calculus that maintains irreversibility. Recently, reversible computational models have been studied mainly
|25. The Church-Rosser Property In Dual Combinatory Logic |
J. M. Dunn and R. K. Meyer Combinatory Logic and structurally free logic, Logic Journal of IGPL, vol. 5 (1997), pp. 505537.
|Log in RSS Title Author(s) Abstract Subject Keyword All Fields FullText more options Browse Search ... next |
The Church-Rosser property in dual combinatory logic Source: J. Symbolic Logic Volume 68, Issue 1 (2003), 132-152.
Abstract Dual combinators no dual combinatory system possesses the Church-Rosser property . Although the lack of confluence might be problematic in some cases, it is not a problem per se . In particular, we show that no damage is inflicted upon the structurally free logics , the system in which dual combinators first appeared. Full-text: Access denied (no subscription detected) We're sorry, but we are unable to provide you with the full text of this article because we are not able to identify you as a subscriber. If you have a personal subscription to this journal, then please login. If you are already logged in, then you may need to update your profile to register your subscription. Read more about accessing full-text Links and Identifiers Permanent link to this document: http://projecteuclid.org/euclid.jsl/1045861508 Mathematical Reviews number (MathSciNet): Digital Object Identifier: doi:10.2178/jsl/1045861508
|26. Springer Online Reference Works |
In Combinatory Logic one chooses as basic the concepts of a oneplace One of the first problems in Combinatory Logic was that of the reduction of the
Encyclopaedia of Mathematics C
Article referred from
Combinatory logic A branch of logic devoted to the study and analysis of such concepts and methods as a variable, a function, the substitution operation, the classification of objects into types or categories, and related matters. In combinatory logic one chooses as basic the concepts of a one-place function and the operation of applying a function to an argument (application). Here the concept of a function is regarded as primitive, instead of that of a set, and is generalized in such a way that a function can be applied to objects at the same level with it. In particular, a function can serve as an argument of itself. Since functions can be used both as arguments and values, the notion of a many-placed function reduces to that of a one-placed function. The result of applying a function to an argument is denoted by . For simplicity the brackets are often omitted, so that the expression stands for . A function satisfying the equation where , are arbitrary functions and is an object constructed from these functions (perhaps not from all of them), is called a combinator. (The existence of combinators is tacitly postulated.) Any combinator can be expressed in terms of the two combinators
|27. Combinatory Logic From FOLDOC |
Combinatory Logic. logic A system for reducing the operational notation of logic, mathematics or a functional language to a sequence of modifications to
|28. A SYSTEM OF COMBINATORY LOGIC |
Title A SYSTEM OF Combinatory Logic. Corporate Author YALE UNIV NEW HAVEN CT INTERACTION LAB. Personal Author(s) FITCH, FREDERIC B.
|30. Functionality In Combinatory Logic |
Functionality in Combinatory Logic*. H. B. Curry. Department of Mathematics, The Pennsylvania State College. Full text. Full text is available as a scanned
|32. Combinatory Logic @ Computer-Dictionary-Online.org |
Combinatory Logic @ Computer Dictionary Online. Computer terminology definitions including hardware, software, equipment, devices, jargon abbreviations and
|33. Combinatory Logic |
Combinatory Logic. See EssAndKayCombinators. EditText of this page (last edited November 21, 2003) FindPage by searching (or browse LikePages or take a
|35. Combinatory Logic Tutorial |
Combinatory Logic (CL), invented by Shoenfinkel and developed by Curry and others in the 1920 s (note before the calculus!), is equivalent in expressive
Combinatory Logic Tutorial (((SK)K)(yS)) By convention, combination is left-associative, so the above can be written equivalently as SKK(yS) Instead of alpha, beta, and nu reduction, there are two essential rules of inference: KXY ==> X SXYZ ==> XZ(YZ) where "X", "Y", and "Z" are metavariables ranging over arbitrary expressions. SKKX ==> KX(KX) ==> X Since this derivation works for any expression X, SKK is the identity function.
Done. Any expression in the lambda calculus can be converted. Logic with just one paren symbol and just one operator.
|38. J Roger Hindley : Research |
Mathematical logic; particularly lambdacalculus, Combinatory Logic and Lambda-calculus and Combinatory Logic are formal systems, to some extent rivals,
|Swansea University Physical Sciences Mathematics Department J Roger Hindley |
J Roger Hindley : Research main publications career
Fields of Interest Mathematical logic; particularly lambda-calculus, combinatory logic and type-theories, with a current bias towards historical aspects. Lambda-calculus and combinatory logic are formal systems, to some extent rivals, used in the construction and study of programming languages which are higher-order (i.e. in which programs may change other programs). These two systems were invented in the 1920s by mathematicians for use in higher-order logic, and came to be applied in programming theory from the 1970s onward, when that theory expanded to cover higher-order computations. In a type-theory, types are labels which may be attached to certain programs to show what other programs they can change. A type-system is a particular set of rules for attaching types; the rules themselves are usually reasonably simple, but such questions as what programs are typable, what set of types a program may receive, and whether a typable computation can continue indefinitely, are not always easy to answer and have occupied many researchers.
Main Publications J R Hindley, J P Seldin
|39. CJO - Abstract - Unique Decomposition Categories, Geometry Of Interaction And Co |
Unique decomposition categories, Geometry of Interaction and Combinatory Logic. ESFANDIAR HAGHVERDI Mathematical Structures in Computer Science 100202,
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Cambridge Journals Online Skip to content Issue 02 - Apr 2000 Cited by Articles (CrossRef) ... Mathematical Structures in Computer Science (2000), 10: 205-230 Cambridge University Press doi:10.1017/S0960129599003035 Subscribe to journal Email abstract Save article ...
Link to this abstract Copy and paste this link: http://journals.cambridge.org/action/displayAbstract?aid=44867 Research Article
Unique decomposition categories, Geometry of Interaction and combinatory logic ESFANDIAR HAGHVERDI
Department of Mathematics, University of Ottawa, 585 King Edward St., Ottawa, ON, K1N 6N5, Canada. Email email@example.com
In another paper (Abramsky et al . 1999), we have developed Abramsky's analysis of Girard's Geometry of Interaction programme in detail. In this paper, our goal is to study the data ow based computational aspects of that analysis. We introduce unique decomposition categories that provide a suitable categorical framework for such computational analysis. The current study also serves to establish connections with the work on proof nets and paths by Girard and Danos and Regnier in this categorical setting. The latter goal is partially achieved here by the presentation of categorical models for dynamic algebras.
|40. Good Book On Combinatory Logic - Sci.logic | Google Groups |
Does anybody know a simple book on Combinatory Logic? I read Smullyans how to mock a mockingbird is interesting but is a bit to much about combinators and
|Help Sign in sci.logic Discussions ... Subscribe to this group This is a Usenet group - learn more good book on combinatory logic Options There are currently too many topics in this group that display first. To make this topic appear first, remove this option from another topic. There was an error processing your request. Please try again. Standard view View as tree Proportional text Fixed text messages Collapse all The group you are posting to is a Usenet group . Messages posted to this group will make your email address visible to anyone on the Internet. Your reply message has not been sent. Your post was successful translogi View profile More options Dec 8, 12:42 pm Newsgroups: sci.logic From: Date: Sat, 8 Dec 2007 04:42:19 -0800 (PST) Local: Sat, Dec 8 2007 12:42 pm Subject: good book on combinatory logic Reply Reply to author Forward Print ... Find messages by this author Does anybody know a simple book on combinatory logic? |
I read Smullyans "how to mock a mockingbird" is interesting but is a
bit to much about combinators and not a lot about where it is good for
or how you can use it.
|41. Combinators And Structurally Free Logic -- Dunn And Meyer 5 (4): 505 -- Logic Jo |
A Kripkestyle semantics is given for Combinatory Logic using frames with a ternary accessibility relation, much as in the Tourley-Meyer semantics for
|@import "/resource/css/hw.css"; @import "/resource/css/igpl.css"; Skip Navigation Oxford Journals My Basket ... Volume 5, Number 4 Pp. 505-537 Logic Journal of IGPL 1997 5(4):505-537; doi:10.1093/jigpal/5.4.505 |
Oxford University Press
This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to My Personal Archive ... Request Permissions Google Scholar Articles by Dunn, J. Articles by Meyer, R. Search for Related Content
Combinators and structurally free logic JM Dunn and RK Meyer Departments of Philosophy and Computer Science, Indiana University, Bloomington, IN 47405, USA Automated Reasoning Project, The Australian National University, Canberra, ACT 2604, Australia A 'Kripke-style' semantics is given for combinatory logic using frames with a ternary accessibility relation, much as in the Tourley-Meyer semantics for relevance logic. We prove by algebraic means a completeness theorem for combinatory logic, by proving
|43. Math: Logic And Foundations: Computational Logic: Combinatory Logic And Lambda C |
Kolmogorov Complexity in Combinatory Logic Online article by John Tromp. Kolmogorov complexity is a recursion theoretic characterisation of randomness.
Math: Logic and Foundations: Computational Logic: Combinatory Logic and Lambda Calculus Home Add Url About Us Contact Us ... Computational Logic : Combinatory Logic and Lambda Calculus
Links Lambda Calculus
Introduction to the lambda calculus for computer scientists. Shows how the calculus can be formalised in Scheme.
Dual Identity Combinators
Article by Katalin BimbÂ³ presented at the 20th World Congress of Philosophy. Investigates the addition of identity combinators, in the formulae-as-types sense, to combinatory logic.
Kolmogorov Complexity in Combinatory Logic
Online article by John Tromp. Kolmogorov complexity is a recursion theoretic characterisation of randomness.
An online introduction to the lambda calculus by Lloyd Allison, complete with a web form that will evaluate lambda expressions. http://www.csse.monash.edu.au/~lloyd/tildeFP/Lambda/
|45. Combinatory Logic On GlobalSpec |
GlobalSpec offers a variety of Combinatory Logic for engineers and through SpecSearch the Combinatory Logic can be searched for the exact specifications
Free Registration Download Engineering Toolbar GlobalSpec Home Find: Advanced Search >> The Engineering Web Part Number Search Engineering News Application Notes Material Properties Patents Standards changeSearchInfo('products', true, null); Welcome to GlobalSpec! We found this content for: combinatory logic Click on a category to narrow your results. The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. ( Learn More All Part Number Search Engineering News ... Standards Product Categories for combinatory logic
Logic Analyzers (56 companies)
Logic analyzers are used to characterize and debug hardware, design and test firmware and software, and perform synthesis integration. Learn more about Logic Analyzers
Programmable ... Devices (PLD (135 companies)
Programmable logic devices (PLD) are designed with configurable logic and flip-flops linked together with programmable interconnect. PLDs provide specific functions, including device-to-device interfacing, data communication, signal processing, data display, timing and control operations, and almost every other function a system must perform. Programmable logic devices (PLD) are designed with configurable logic and flip-flops linked together with programmable interconnect. PLDs provide specific functions, including device-to-device interfacing, data communication, signal processing.
|46. Combinatory Logic - Definition Of Combinatory Logic By The Online Dictionary Fro |
Definition of Combinatory Logic in the Online Dictionary. Multiple meanings, detailed information and synonyms for Combinatory Logic.
|Online Dictionary C : combinatory logic |
combinatory logic 1 definition found combinatory logic Free On-line Dictionary of Computing (26 May 2007) : logic , mathematics or a functional language to a sequence of modifications to the input data structure. First introduced in the 1920's by Schoenfinkel. Re-introduced independently by Haskell Curry in the late 1920's (who quickly learned of Schoenfinkel's work after he had the idea). Curry is really responsible for most of the development, at least up until work with Feys in 1958. See combinator
|48. COMBINATORY LOGIC |
Combinatory Logic A system for reducing the operational notation of logic, mathematics or a functional language to a sequence of modifications to the input
|Philip M. Parker, INSEAD. |
Specialty Definition: COMBINATORY LOGIC Domain Definition
Computing Combinatory logic A system for reducing the operational notation of logic, mathematics or a functional language to a sequence of modifications to the input data structure. First introduced in the 1920's by Schoenfinkel. Re-introduced independently by Haskell Curry in the late 1920's (who quickly learned of Schoenfinkel's work after he had the idea). Curry is really responsible for most of the development, at least up until work with Feys in 1958. See combinator. (1995-01-05). Source: The Free On-line Dictionary of Computing Source: compiled by the editor from various references ; see credits. Top
Crosswords: COMBINATORY LOGIC Specialty definitions using "COMBINATORY LOGIC" combinator fixed point combinator Haskell Curry microcode ... Top
Commercial Usage: COMBINATORY LOGIC Domain Title
Source: compiled by the editor from various references ; see credits.
- Elements of combinatory logic reference
- To Mock a Mocking Bird and Other Logic Puzzles: Including an Amazing Adventure in Combinatory Logic reference (more book examples)
|51. CAT.INIST |
In theoretical computer science and mathematics the models of Combinatory Logic are of significance in various ways. In particular within the discipline
|53. ComSci 319, U. Chicago |
Combinatory Logic volume I by Haskell B. Curry and Robert Feys with two sections by William Craig, NorthHolland, Amsterdam, Studies in Logic and the
Com Sci 319 A course in the Department of Computer Science
The University of Chicago
Online discussion using HyperNews
- [8 Feb] Assignment #4 is due on Monday, 14 February, at the beginning of class. (O'D)
[17 Jan] The HyperNews discussion is set up. Please read the instructions, and jump in. The system reports an error whenever you post, but the only error is the error report itself. I'm trying to get that fixed. In the meantime, please don't post the same message repeatedly in response to the erroneous error message. (O'D)
[29 Dec 1999] The Web materials for ComSci 319 are under construction. Some links are broken. (O'D)
- Venue: MW 9:00-10:20, Ryerson 257
Instructor: Michael J. O'Donnell
- Office: Ryerson 257A. email: firstname.lastname@example.org Office hours: by appointment. Contact me by email, phone at the office (312-702-1269), or phone at home (847-835-1837 between 9:30 and 5:30 on days that I work at home). You may drop in to the office any time, but you may find me out or busy if you haven't confirmed an appointment. Check my personal schedule before proposing an appointment.
|54. Combinatory Logic - Definition By Dict.die.net |
Combinatory Logic A system for reducing the operational notation of logic, mathematics or a functional language to a sequence of modifications to the input
Definition: combinatory logic Search dictionary for Source: The Free On-line Dictionary of Computing (2003-OCT-10) combinatory logic A system for reducing the operational notation of logic , mathematics or a functional language to a sequence of modifications to the input data structure. First introduced in the 1920's by Schoenfinkel . Re-introduced independently by Haskell Curry in the late 1920's (who quickly learned of Schoenfinkel's work after he had the idea). Curry is really responsible for most of the development, at least up until work with Feys in 1958. See combinator
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|55. Curry Biography |
Curry began working on Combinatory Logic in 1950 when he was awarded a Fulbright Grant Combinatory Logic is concerned with certain basic notions of the
Haskell Brooks Curry
Born: 12 Sept 1900 in Millis, Massachusetts, USA Click the picture above
Died: 1 Sept 1982 in State College, Pennsylvania , USA
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Version for printing Haskell Curry 's mother was Anna Baright and his father was Samuel Silas Curry. Samuel was the president of the School of Expression in Boston and Anna was the Dean of the School. Haskell did not show particular interest in mathematics when at high school and when he graduated in 1916 he fully intended to study medicine. He entered Harvard College, the undergraduate school of Harvard University, and took a mathematics course in his first year of study as part of his studies towards a degree in medicine. A major influence on the direction that his studies took was the entry of the United States into World War I in the spring of 1917. Curry wanted to serve his country, and decided that he would be more likely to see action if he had a mathematics training rather than if he continued the pre-medical course he was on. Anyhow he had enjoyed the mathematics course he had taken and had done very well in the course. He changed his major subject to mathematics and then enlisted in the Student Army Training Corps on 18 October 1918. The war, however, ended shortly after this (in November) and on 9 December 1918 Curry left the army. He continued on the mathematics course at Harvard, however, and graduated in 1920 with an A.B. degree.
|56. A Hierarchy Of Languages, Logics, And Mathematical Theories - Cogprints |
Starting from the root tier, the mathematical theories in this hierarchy are Combinatory Logic restricted to the identity I, Combinatory Logic,
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A hierarchy of languages, logics, and mathematical theories Kastner, Charles W. A hierarchy of languages, logics, and mathematical theories. [Preprint] Full text available as: Preview PDF - Requires a PDF viewer such as GSview Xpdf or Adobe Acrobat Reader
Abstract Item Type: Preprint Keywords: Chomsky hierarchy, evolution of language, combinatory logic, lambda calculus, category theory Subjects:
ID Code: Deposited By: Kastner, Charles W. Deposited On: 15 Apr 2003 Last Modified: 12 Sep 2007 17:47
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|58. Science Links Japan | Functional Language Processing Via Combinatory Logic And I |
Abstract;As one of the methods of processing functional language, there exists the way which evaluates and executes its corresponding Combinatory Logic
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Functional Language Processing via Combinatory Logic and its relation to Graph Transformation System. Accession number; Title; Functional Language Processing via Combinatory Logic and its relation to Graph Transformation System. Author; SUGITO YOSHIO(Electrotech. Lab., Agency of Ind. Sci. and Technol.) Journal Title; IEIC Technical Report (Institute of Electronics, Information and Communication Engineers)
ISSN: VOL. NO. PAGE. REF.7 Pub. Country; Japan Language; Japanese Abstract; As one of the methods of processing functional language, there exists the way which evaluates and executes its corresponding combinatory logic codes by means of combinatory logic's reduction. In this paper, especially forcusing in case of using the framework of category theory(that is, categorical combinatory logic-CCL-), we try to execute its CCL-code using our graph transformation system(GMS-98) as the case study of using and estimating the system. (author abst.) BACK About J-EAST How to use List of Publications ... FAQ
|59. Combinatory Logic - Indopedia, The Indological Knowledgebase |
This article is about a topic in theoretical computer science, and is not to be confused with combinatorial logic, a topic in electronics.
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Categories Logic in computer science Mathematical logic Lambda calculus ... Wikipedia Article
Combinatory logic Ã Â¤ÂÃ Â¥ÂÃ Â¤ÂÃ Â¤Â¾Ã Â¤Â¨Ã Â¤ÂÃ Â¥ÂÃ Â¤Â¶: - The Indological Knowledgebase
Combinatory logic is a simplified model of computation , used in computability theory (the study of what can be computed) and proof theory (the study of what can be mathematically proven .) The theory, despite its simplicity, captures many essential features of the nature of computation. Combinatory logic is a variation of the lambda calculus , in which lambda expressions (used to allow for functional abstraction) are replaced by a limited set of combinators , primitive functions which contain no free variables . It is easy to transform lambda expressions into combinator expressions, and since combinator reduction is much simpler than lambda reduction, it has been used as the basis for the implementation of some non-strict functional programming languages in software and hardware Contents showTocToggle("show","hide")
- This article is about a topic in theoretical computer science, and is not to be confused with combinatorial logic , a topic in electronics
|62. Combinatory Logic - ExampleProblems.com |
This article is about a topic in mathematical logic and theoretical computer science, and is not to be confused with combinatorial logic,
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Combinatory logic is a notation introduced by Moses SchÂ¶nfinkel and Haskell Curry to eliminate the need for variables in mathematical logic . It has more recently been used in computer science as a theoretical model of computation and also as a basis for the design of functional programming languages.
- This article is about a topic in mathematical logic and theoretical computer science, and is not to be confused with combinatorial logic , a topic in electronics
Combinatory logic in computing Summary of the lambda calculus Combinatory calculi ... edit
- Combinatory logic in mathematics
Combinatory logic in mathematics Combinatory logic was intended as a simple 'pre-logic' which would clarify the meaning of variables in logical notation, and indeed eliminate the need for them. See Curry, 1958-72. edit
Combinatory logic in computing In computer science, combinatory logic is used as a simplified model of computation , used in computability theory (the study of what can be computed) and proof theory (the study of what can be mathematically proven .) The theory, despite its simplicity, captures many essential features of the nature of computation.
|63. Combinatory Logic In TutorGig Encyclopedia |
Combinatory Logic is a notation introduced by Moses SchÃ¶nfinkel and Haskell Curry to eliminate the need for variables in mathematical logic.
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Combinatory logic This article is about a topic in mathematical logic and theoretical computer science, not to be confused with combinational logic , sometimes known as combinatorial logic , a topic in digital electronics 'Combinatory logic ' is a notation introduced by Moses SchÃ¶nfinkel and Haskell Curry to eliminate the need for variable s in mathematical logic . It has more recently been used in computer science as a theoretical model of computation and also as a basis for the design of functional programming languages. It is based on 'combinators ', which are higher-order function s that solely use function application and possibly other, earlier defined combinators for defining a result from their arguments.
Combinatory logic in mathematics Combinatory logic was intended as a simple 'pre-logic' which would clarify the meaning of variables in logical notation, and indeed eliminate the need for them. See Curry, 1958?1972.
|64. Combinatory Logic - Spock Search |
Haskell Curry, Corrado BÃ¶hm, Moses SchÃ¶nfinkel, Mark Steedman, Robert Feys and other people matching \
|65. Integrated Circuit Having Combinatorial Logic Functionality And Provided With Tr |
Integrated Logic CMOScircuit which operates at a reduced supply voltage between 2 and 3.6 Volts. So as to provide reliable operation of the circuit at this
|Login or Create Free Account Search Go to Advanced Search Home Search Patents Data Services ... Help Title: Integrated circuit having combinatorial logic functionality and provided with transmission gates having a low threshold voltage. Document Type and Number: European Patent EP0339737 Kind Code: Link to this page: http://www.freepatentsonline.com/EP0339737A1.html Abstract: Integrated logic CMOS-circuit which operates at a reduced supply voltage between 2 and 3.6 Volts. So as to provide reliable operation of the circuit at this low supply voltage and to substantially limit the power dissipation in this logic circuit it is proposed to design the transmission gates (T1,T2) in that circuit as one single N-channel transistor having a threshold voltage which is less than or equal to half the threshold voltage of NMOS-transistors in further gates of the logic CMOS-circuit. Preferably, the lower threshold voltage of NMOS-transistors in the transmission gates is approximately 0.3 Volt. Inventors: De, Loore Bart Jozef Suzanne|