What is CNF?

CNF stands for Conjunctive Normal Form. It's a standard way of representing Boolean formulas in mathematical logic and computer science. A CNF formula is essentially a conjunction (AND) of clauses, where each clause is a disjunction (OR) of literals. A literal is either a variable or its negation. CNF is widely used in automated theorem proving, satisfiability (SAT) solvers, and logic programming because its standardized structure simplifies many algorithms and analysis techniques. Converting to CNF is a common step in many problem-solving approaches related to boolean logic.