The Gandalf theorem prover is the first-order theorem prover applied to several domain-specific tasks such as Semantic web. It has also participated in the The CADE ATP System Competition and had impressive results in that competition. It is programmed in the Scheme programming language which is then compiled to the C programming language using Hobbit from SCM. Automated theorem proving (currently the most important subfield of automated reasoning) is the proving of mathematical theorems by a computer program. ... The Semantic Web is an evolution of the World Wide Web in which information is machine processable (rather than being only human oriented), thus permitting browsers or other software agents to find, share and combine information more easily. ... The Scheme programming language is a functional programming language and a dialect of Lisp. ... C is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. ... SCM is an acronym for Software Configuration Management, and relates to configuration management (CM). ...
The theorems of interest may be in traditional mathematical domains, or they may be in other fields such as digital computer design.
Another distinction is sometimes drawn between theorem proving and other techniques, where a process is considered to be theorem proving if it consists of a traditional proof, starting with axioms and producing new inference steps using rules of inference.
A good example of this was the machine-aided proof of the four color theorem, which was very controversial as the first claimed mathematical proof which was essentially impossible to check by hand.
E 0.6 [Sch99] is a purely equational theoremprover.
E 0.62 [Sch01] is a purely equational theoremprover.
Gandalf is a reolsution prover which implements a number of different basic strategies: binary ordered resolution for several orderings, versions of set-of-support resolution, binary unit resolution, hyperresolution.
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