Concept

Square of opposition

Overview

type of logic diagram

Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).

Philosophers who discussed Square of opposition

• Boethius

Related ideas

• Judgment (mathematical logic)
• Apuleius
• Boethius
• Mathematical logic
• Set theory
• Subset
• Philosophical logic
• Aristotle
• Term logic
• Logical form
• William of Ockham
• Peter Abelard
• George Boole
• Syllogism
• Gottlob Frege
• Venn diagram
• Philosophy of language
• Contradiction
• Modern philosophy
• Proposition
• Contraposition
• Begriffsschrift
• On Interpretation
• Empty set

Opposing perspectives

• Empty set

Place in the tradition

Part of Outline of logic.

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