F is ⊤ or F is ⊥ F is constructed from literals, using only the binary connectives '∧' and '∨' A formula F is in disjunctive normal form(DNF), iff F has the form F = F1 ∨ ... ∨ Fn, n ≥ 1, and each of ...

Abstract: A matrix method for principal normal form of propositional formula is derived from disjunctive normal form and conjunctive normal form based on the extension principle and deletion principle ...

This C++ program implements a basic logic reasoning system using resolution in Propositional Logic, specifically in Clausal Form (FNC - Forma Normală Conjunctivă, i.e., CNF: Conjunctive Normal Form).