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| Giga Bits (more) | logical calculus | theorem provers | SICStus-Prolog |
| logics | Propositional Modal Logics | 56070 | 1998 |
| proofs | deduction | 1997 | Lisp |
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Logic Software from CSLI By Jon Barwise and John Etchemendy. Search in Category: Science: Math: Logic and Foundations: Education Search in Category: Reference: Education: Colleges and Universities: North America: United States: California: Private Colleges and Universities: Stanford University: Research Search in Category: Science: Social Sciences: Linguistics: Computational Linguistics: Research Groups Search in Category: Science: Social Sciences: Linguistics: Morphology and Syntax: Grammars: Head-Driven Phrase Structure Grammars www-csli.stanford.edu/hp/Logic-software.html - cached - |
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LOOM A language and environment for constructing intelligent applications. It is a research project in the Artificial Intelligence research group at the University of Southern California's Information Sciences Institute. The goal of the project is to develop and field advanced tools for knowledge representation and reasoning in Artificial Intelligence. Search in Category: Computers: Computer Science: Research Institutes Search in Category: Reference: Education: Colleges and Universities: North America: United States: California: Private Colleges and Universities: University of Southern California: Research Search in Category: Regional: North America: United States: California: Localities: M: Marina del Rey: Business and Economy: Computers and Internet www.isi.edu/isd/LOOM/LOOM-HOME.html - published: Mar 28 2002 - cached - |
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Proof General Comprehensive Gnu-Emacs and XEmacs interface for several theorem provers including Coq, Isabelle, Lego, and Phox. proofgeneral.inf.ed.ac.uk - cached - |
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PVS The PVS Specification and Verification System. Available for Sparc machines with Solaris 2 and Intel x86 Machines with Linux compatible with Redhat 5 or later. Required is Emacs (version 19 or later), recommended LaTeX and Tcl/Tk. Download by FTP. pvs.csl.sri.com - modified: 7 months ago - cached - |
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Bertrand Bertrand solves sets of first-order predicate logic statements for satisfiability (consistency), validity, and equivalence. It also checks single statements for "logical truth" (tautology) and "logical falsity" (self-contradiction). Subject-identity is supported. User can "step through" the solution algorithm as Bertrand solves a problem, and/or check the graphic tree produced. Search in Category: Reference: Education: Colleges and Universities: North America: United States: Wisconsin: University of Wisconsin: Oshkosh www.uwosh.edu/faculty_staff/herzberg/Bertrand.html - cached - | |
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Database of Existing Mechanized Reasoning Systems A list (>50 entries) of automatic resolution provers (like Otter), interactive provers (like PVS) and other mechanized reasoning tools. Search in Category: Computers: Artificial Intelligence: Academic Departments www-formal.stanford.edu/clt/ARS/systems.html - published: Jun 18 1999 - cached - | |
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DC Proof Online New proof-writing software to teach the fundamentals of logic and proof. Enables users/students to write error-free proofs by selecting rules of inference, axioms, etc. from convenient drop-down menus. Includes tutorial and exercises. www.dcproof.com - modified: 8 months ago - cached - | |
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Isabelle A generic theorem proving environment developed at Cambridge University (Larry Paulson) and TU Munich (Tobias Nipkow). Includes logic, documentation and free download. Search in Category: Reference: Education: Colleges and Universities: Europe: United Kingdom: England: University of Cambridge: Departments and Programs: School of Technology: Computer Laboratory www.cl.cam.ac.uk/Research/HVG/Isabelle - cached - | |
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LWB Logics Workbench. www.lwb.unibe.ch - cached - | |
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PROTEIN A PROver with a Theory Extension INterface. Theorem prover for first-order clause logic, written in ECRC's Prolog-dialect ECLiPSe. Free download, documentation. www.uni-koblenz.de/ag-ki/Implementierungen/Protein - cached - | |
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The Coq Project Deals with effectively machine-checked formal mathematics. In practice, this includes the study of mathematical formalisms well-suited for implementations, the implementations themselves and the use of these for various applications. Focuses on software correctness proofs. pauillac.inria.fr/coq - indexed: 6 days ago - cached - | |
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VeriFun A semi-automated system for the verification of statements about programs written in a functional programming language. The system is capable of following fully-automated routines for theorem proving and hypotheses formation, as well as operating interactively when these reoutines fail. www.informatik.tu-darmstadt.de/pm/verifun - cached - | |
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ACL2 Version 2.7 A programming language in which you can model computer systems and a tool to help prove properties of those models. Available under GPL and runs on various platforms. Includes related download links. Search in Category: Computers: Programming: Languages: Lisp: Compilers and Interpreters Search in Category: Computers: Computer Science: Academic Departments: North America: United States: Texas Search in Category: Reference: Education: Colleges and Universities: North America: United States: Texas: University of Texas: Austin: Departments and Programs www.cs.utexas.edu/users/moore/acl2 - cached - | |
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Automated Reasoning Project Web resource provided by research group. Includes access to software developed by the team, coverering such projects as FINDER (Finite Domain Enumerator), MaGIC (Matrix Generator for Implication Connectives) and Kripke (A theorem prover for the relevant logic LR). cslab.anu.edu.au/ar - published: Feb 26 2008 - cached - | |
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Church Program understands the different types of lambda expressions, can extract lists of variables (both free and bound) and subterms, and can simplify complicated expressions. Uses Python. Search in Category: Society: People: Personal Homepages: F www.alcyone.com/software/church - cached - | |
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DELORES A forward-chaining reasoning engine for defeasible logic, a less expressive but more efficient nonmonotonic logic. Search in Category: Computers: Artificial Intelligence: People www.dfki.uni-kl.de/~miller/delores - indexed: 6 days ago - cached - | |
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Gateway to Logic A collection of web-based logic programs offering a number of logical functions: interactively or automatically build proofs, check theorems, and operate on propositional logic formulae. logik.phl.univie.ac.at/~chris/formular-uk.html - published: Nov 03 2006 - cached - | |
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j'Imp Theorem Prover An automatic theorem prover based on set of support and ordered resolution for first-order logic. j'Imp is part of the Orbital library. This library is a Java class providing object-oriented representations and algorithms for logic, mathematics, and artificial intelligence. www.functologic.com/logic/jImp.html - modified: 9 months ago - cached - | |
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MUltlog Takes as input the specification of a finitely-valued first-order logic and produces a sequent calculus, a natural deduction system, and clause formation rules for this logic. Search in Category: Science: Math: Logic and Foundations: Institutions: Europe www.logic.at/multlog - cached - | |
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MUltseq A generic sequent prover for propositional finitely-valued logics. Search in Category: Science: Math: Logic and Foundations: Institutions: Europe www.logic.at/multseq - published: Jun 01 1999 - cached - | |
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Paradox A tool that processes first-order logic problems and tries to find finite-domain models for them; written by Koen Claessen and Niklas Sörensson. Haskell and C++; free download under GPL. www.cs.chalmers.se/~koen/paradox - | |
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ProofPower A suite of tools supporting specification and proof in Higher Order Logic (HOL) and in Z notation. www.lemma-one.com/ProofPower/index - published: Nov 16 2008 - cached - | |
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Tree Proof Generator An implementation of the semantic tableaux method for classical propositional and predicate logic, written in JavaScript/DOM. www.umsu.de/logik/trees - cached - | |
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CrocoPat: Simple and Efficient Relational Programming CrocoPat manipulates relations of any arity, including graphs (which are binary relations). Its simple and expressive query and manipulation language is based on first-order predicate calculus. The implementation is based on the data structure binary decision diagram (BDD). mtc.epfl.ch/~beyer/CrocoPat - published: Feb 15 2008 - cached - | |
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llprover A linear logic prover that searches a cut-free proof for the given two-sided sequent of first-order linear logic. bach.scitec.kobe-u.ac.jp/llprover - indexed: 6 days ago - published: May 09 2007 - cached - | |
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ModLeanTAP: Lean Tableau-based Deduction for Propositional Modal Logics Lean Tableau-based Deduction for Propositional Modal Logics. By Bernhard Beckert. i12www.ira.uka.de/modlean - indexed: 6 days ago - cached - | |
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Spreadsheet Logic Free Microsoft Excel add-in for processing and evaluating logic in your spreadhseet. members.lycos.co.uk/jbusar - cached - | |
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WinKE An interactive proof assistant based on analytic tableaux, and designed for the teaching of deductive reasoning. Ordering information is available at this site, as are academic papers on the design of the software. staff.science.uva.nl/~ulle/WinKE - published: Nov 10 2008 - cached - | |
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