Rule of Replacement in Formal Logic
A fundamental principle in formal logic that permits substituting logically equivalent expressions…
Quine’s Dictum: Ontological Commitment in Logic
Quine's dictum, "To be is to be the value of a variable,"…
Model-Theoretic Consequence
Model-theoretic consequence is a fundamental concept in logic, defining logical implication through…
Material Conditional
The material conditional, symbolized as 'if...then...', is a fundamental logical operator. It…
Löwenheim–Skolem Theorem
A fundamental theorem in mathematical logic stating that any countable theory with…
Logical Consequence
Logical consequence describes the relationship where true premises guarantee a true conclusion…
Ex Falso Quodlibet: The Principle of Explosion
Ex falso quodlibet, or the principle of explosion, is a logical tenet…
Distribution Axiom in Modal Logic
The distribution axiom, often referred to as axiom K, is fundamental in…