Universal Introduction Rule in Predicate Logic
The universal introduction rule in predicate logic allows inferring a general statement…
Universal Elimination in Predicate Logic
Universal elimination is a fundamental rule of inference in predicate logic. It…
Transposition in Logic
Transposition is a fundamental logical rule enabling the transformation of a conditional…
Structural Rule in Logic
A structural rule in logic, particularly proof theory, governs the manipulation of…
Rule of Replacement in Formal Logic
A fundamental principle in formal logic that permits substituting logically equivalent expressions…
Permutation: Exchanging Formulas in Logic
Permutation is a structural rule in logic that enables the exchange of…
Understanding Obversion in Logic
Obversion is a logical operation transforming a categorical proposition into an equivalent…
Negation Introduction Rule in Natural Deduction
Negation introduction is a natural deduction rule enabling the derivation of negation.…
Necessitation Rule in Modal Logic
The necessitation rule in modal logic states that if a proposition is…