Weak induction proves a statement for natural numbers by assuming it's true for the immediately preceding case. This contrasts with…
Vel, the Latin word for 'or', represents the logical symbol ∨. It denotes an inclusive disjunction, meaning the entire statement…
A variable assignment, sometimes called a variable assignment function, is a crucial interpretation in formal languages for first-order or higher-order…
A truth table systematically displays the truth value of a compound statement for all possible truth combinations of its individual…
The translation lemma is a crucial synonym for the Sm n theorem, facilitating proofs in probability theory and statistical mechanics…
Explore hypothetical situations and their consequences with subjunctive conditionals. These statements describe what would be true if a contrary-to-fact antecedent…
A strict conditional is a logical implication where the truth of the antecedent necessitates the truth of the consequent. It's…
The Square of Opposition illustrates logical relations between A, E, I, and O categorical propositions. It details contradictions, contraries, subcontraries,…
Skolemization is a crucial technique in first-order logic for eliminating existential quantifiers. It involves introducing Skolem functions to preserve logical…
Sequent calculus is a formal system for logical entailments, representing deductions as sequences of formulas. It emphasizes structural rules, providing…