A counterfactual conditional is an 'if...then...' statement about something that did not happen. It explores hypothetical situations and their potential…
Alfred Tarski's Convention T proposes a criterion for truth: a sentence is true if and only if it accurately reflects…
A contradiction asserts a statement and its negation simultaneously. In classical logic, this is universally considered false, forming the basis…
Contingency describes propositions that are neither always true nor always false, their truth value depending on specific conditions or the…
A concrete object is something that exists in physical reality. Unlike abstract concepts, it possesses tangible properties and can be…
A philosophical and mathematical concept representing an actual, completed infinity as a whole, distinct from potential infinities that are indefinitely…
The coherence theory of truth posits that a statement is true if it coheres or fits logically with a larger…
Coextensive describes concepts or terms that share the same scope or range, applying to the exact same set of objects.…
A robust form of reductio ad absurdum, it proves a proposition P by demonstrating that its negation ¬P leads to…
A categorical syllogism is a deductive reasoning form in Aristotelian logic. It uses three categorical propositions and three terms to…