Negation Normal Form (NNF)
Negation Normal Form (NNF) is a standard way to represent logical formulas.…
Negation Introduction Rule in Natural Deduction
Negation introduction is a natural deduction rule enabling the derivation of negation.…
Negation Elimination in Natural Deduction
Negation elimination is a fundamental rule in natural deduction. It permits inferring…
Negation Consistency in Logic
Negation consistency ensures a logical system is free from contradictions, meaning no…
Negation Completeness in Logic
Negation completeness signifies a logical system's ability to prove either any given…
Necessity: Truth in All Possible Worlds
Necessity signifies a proposition that holds true across all possible worlds or…
Necessitation Rule in Modal Logic
The necessitation rule in modal logic states that if a proposition is…