LWB (Popularity: ): Logics Workbench. Database of Existing Mechanized Reasoning Systems (Popularity: ): A list (>50 entries) of automatic resolution provers (like Otter), interactive provers (like PVS) and other mechanized reasoning tools. Automated Reasoning Project (Popularity: ): 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 ... MUltseq (Popularity: ): A generic sequent prover for propositional finitely-valued logics. MUltlog (Popularity: ): 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. Isabelle (Popularity: ): A generic theorem proving environment developed at Cambridge University (Larry Paulson) and TU Munich (Tobias Nipkow). Includes logic, documentation and free download. WinKE: A Proof Assistant for Teaching Logic (Popularity: ): WinKE is 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 ... Logic Software from CSLI (Popularity: ): By Jon Barwise and John Etchemendy. LOOM (Popularity: ): 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 ... PVS (Popularity: ): 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 ...