In philosophy, 'use' signifies the actual application of words in sentences to convey meaning. It contrasts with 'mention,' focusing on…
An argument that fails to guarantee its conclusion due to either an invalid logical structure or at least one false…
A universal variable, bound by a universal quantifier (∀), represents any and all individuals within the domain of discourse in…
A universal proposition in logic makes a claim about every single member of a specific group or category. It's a…
Universal elimination is a fundamental rule of inference in predicate logic. It permits inferring a specific instance from a general…
Alfred Tarski's truth schema, often stated as ''P'' is true if and only if P, provides a foundational definition of…
A truth-value glut occurs when a statement is paradoxically both true and false. This concept is linked to dialetheism and…
A truth-value gap occurs when a statement lacks a definitive true or false designation. This often arises from vagueness or…
The truth value represents whether a proposition or statement is true or false. Classical logic uses binary true/false, while many-valued…
Truth-trees, also known as analytic tableaux, are a method for testing logical validity and consistency. They systematically break down complex…