Get The Logic Calculator - Microsoft Store
www.microsoft.com › en-us › pThis free app allows users of propositional logic to perform operations with the same ease as that offered by a mathematical calculator. To be precise, using this app, one can determine whether: (1) input is well-formed and, if not, why not, (2) sentences are tautologies, contradictions or contingent, (3) sets of sentences are consistent or inconsistent and (4) arguments are valid or invalid.