Universal Proposition
A universal proposition in logic makes a claim about every single member…
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…
Unary Relation
A unary relation, also known as a monadic relation, describes a property…
Type Theory
A mathematical logic and computer science framework using types to classify expressions…
Understanding ‘Type’ in Logic and Mathematics
A 'type' categorizes entities with shared characteristics, crucial in logic and mathematics…
The Turnstile Symbol (⊢) in Logic
The turnstile symbol (⊢) signifies syntactic entailment or provability in formal logic.…
Tarski’s Truth Schema
Alfred Tarski's truth schema, often stated as ''P'' is true if and…
Truth-Value Glut
A truth-value glut occurs when a statement is paradoxically both true and…
Truth-Value Gaps: When Statements Aren’t True or False
A truth-value gap occurs when a statement lacks a definitive true or…