Logic, the foundation of reasoning and computation, often involves complex arguments and formulas. Determining the validity of these arguments and the consistency of these formulas can be challenging.

Predicate logic is an extension of propositional logic. Here we consider what is called first-order predicate logic, abbreviated FOL (sometimes abbreviated PL1, not to be confused with the programming ...

This is a preview. Log in through your library . Journal Information The Journal of Symbolic Logic (JSL) was founded in 1936 and it has become the leading research journal in the field. It is issued ...

Abstract: Both at the propositional and the predicate level, in tableau systems of intuitionistic logic as well as in the corresponding sequent and natural calculi, the problem arises of reducing as ...