Aristotle’s Theses in Propositional Logic
Aristotle's theses, specifically ¬(¬A → A) and ¬(A → ¬A), are key…
Aristotelian Logic
Aristotle's traditional logic, a foundational system in Western thought, centers on syllogisms…
Aristotelian Comprehension Schema
The Aristotelian comprehension schema, represented as (∃x)Φ → (∃Y)(∀x)(Yx ↔ Φ) in…
Antilogism: Understanding Logical Contradictions
An antilogism is a syllogism with three premises that lead to a…
Anti-extension in Set Theory and Logic
The anti-extension of a concept or predicate includes all objects that do…
Alethic Modal Logic
Alethic modal logic explores modalities of truth, focusing on concepts like necessity…
Affirming the Consequent Fallacy
A logical fallacy where an argument incorrectly assumes the antecedent is true…
Affirmative Proposition
An affirmative proposition asserts the truth of a statement, affirming a quality…
Addition Rule of Inference in Formal Logic
The addition rule in formal logic allows inferring a disjunction from a…
Accessibility Relation in Modal Logic
An accessibility relation in modal logic defines the connections between possible worlds…