Best Prices On Software Save
Computers, Networking & More. Best Prices On Software on Sale.
www.NexTag.co.uk/computers (sponsored link)
 

ACL2 Version 2.7 Save
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.
http://www.cs.utexas.edu/users/moore/...   

Automated Reasoning Project Save
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).
http://cslab.anu.edu.au/ar/   

Bertrand Save
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.
http://www.uwosh.edu/faculty_staff/he...   

Church Save
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.
http://www.alcyone.com/software/church/   

CrocoPat: Simple and Efficient Relational Programming Save
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).
http://mtc.epfl.ch/~beyer/CrocoPat/   

DC Proof Online Save
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.
http://www.dcproof.com   

DELORES Save
A forward-chaining reasoning engine for defeasible logic, a less expressive but more efficient nonmonotonic logic.
http://www.dfki.uni-kl.de/~miller/del...   

Database of Existing Mechanized Reasoning Systems Save
A list (>50 entries) of automatic resolution provers (like Otter), interactive provers (like PVS) and other mechanized reasoning tools.
http://www-formal.stanford.edu/clt/AR...   

Gateway to Logic Save
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.
http://logik.phl.univie.ac.at/~chris/...   

Isabelle Save
A generic theorem proving environment developed at Cambridge University (Larry Paulson) and TU Munich (Tobias Nipkow). Includes logic, documentation and free download.
http://www.cl.cam.ac.uk/Research/HVG/...   

LOOM Save
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.
http://www.isi.edu/isd/LOOM/LOOM-HOME...   

LWB Save
Logics Workbench.
http://www.lwb.unibe.ch/   

Logic Software from CSLI Save
By Jon Barwise and John Etchemendy.
http://www-csli.stanford.edu/hp/Logic...   

MUltlog Save
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.
http://www.logic.at/multlog/   

MUltseq Save
A generic sequent prover for propositional finitely-valued logics.
http://www.logic.at/multseq/   

ModLeanTAP: Lean Tableau-based Deduction for Propositional Modal Logics Save
Lean Tableau-based Deduction for Propositional Modal Logics. By Bernhard Beckert.
http://i12www.ira.uka.de/modlean/   

PROTEIN Save
A PROver with a Theory Extension INterface. Theorem prover for first-order clause logic, written in ECRC's Prolog-dialect ECLiPSe. Free download, documentation.
http://www.uni-koblenz.de/ag-ki/Imple...   

PVS Save
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.
http://pvs.csl.sri.com/   

Paradox Save
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.
http://www.cs.chalmers.se/~koen/paradox/   

Proof General Save
Comprehensive Gnu-Emacs and XEmacs interface for several theorem provers including Coq, Isabelle, Lego, and Phox.
http://proofgeneral.inf.ed.ac.uk   

ProofPower Save
A suite of tools supporting specification and proof in Higher Order Logic (HOL) and in Z notation.
http://www.lemma-one.com/ProofPower/i...   

Spreadsheet Logic Save
Free Microsoft Excel add-in for processing and evaluating logic in your spreadhseet.
http://members.lycos.co.uk/jbusar/   

SwitchMin Digital Circuit Minimizer Save
Tool for minimizing boolean logic functions.
http://incolor.inetnebr.com/double/so...   

The Coq Project Save
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.
http://pauillac.inria.fr/coq/   

Tree Proof Generator Save
An implementation of the semantic tableaux method for classical propositional and predicate logic, written in JavaScript/DOM.
http://www.umsu.de/logik/trees   

VeriFun Save
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.
http://www.informatik.tu-darmstadt.de...   

Visual Turing Save
A graphical IDE for creating, running and debugging Turing machines. Freeware for Windows 95/98/NT/2000.
http://www.cheransoft.com/vturing/   

WinKE Save
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.
http://staff.science.uva.nl/~ulle/WinKE/   

j'Imp Theorem Prover Save
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.
http://www.functologic.com/logic/jImp...   

llprover Save
A linear logic prover that searches a cut-free proof for the given two-sided sequent of first-order linear logic.
http://bach.scitec.kobe-u.ac.jp/llpro...   

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