Multiple-valued logics for theorem-proving in first order logic with equality
Robert J Bignall, Matthew Spinks · 2002
We outline a method for proving theorems in first-order logic with equality using some equational logics and their associated multiple-valued propositional logics, and describe an application of the method that makes use of the automated theorem-prover Otter to prove a range of theorems from the TPTP library of problems in first-order logic with equality.