Negation Normal Form - Web negation normal form (nnf) disjunctive normal form (dnf) conjunctive normal form (cnf) every formula of pl can be. For any propositional variables p, q, and r, we have:((p_q)^(q ! For every literal l, the literal. A literal is an atomic formula or its negation. A propositional formula p p is in negation normal form ( nnf) if and only if : ≡ aa∨ bb∨ cc [double negation law] ≡ aa∨ ( bb ∧ cc̅ b. Aa ⋀( bb∨ cc) ≡ aa ∨ bb∨ cc [demorgan’s law] a ∨ ¬ ∧. Web definition literal, negation normal form.
For every literal l, the literal. A literal is an atomic formula or its negation. Web definition literal, negation normal form. A propositional formula p p is in negation normal form ( nnf) if and only if : Aa ⋀( bb∨ cc) ≡ aa ∨ bb∨ cc [demorgan’s law] a ∨ ¬ ∧. Web negation normal form (nnf) disjunctive normal form (dnf) conjunctive normal form (cnf) every formula of pl can be. For any propositional variables p, q, and r, we have:((p_q)^(q ! ≡ aa∨ bb∨ cc [double negation law] ≡ aa∨ ( bb ∧ cc̅ b.