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Equivalents of Mingle and Positive Paradox

Eric Schechter
Studia Logica: An International Journal for Symbolic Logic
Vol. 77, No. 1 (Jun., 2004), pp. 117-128
Published by: Springer
Stable URL: http://www.jstor.org/stable/20016611
Page Count: 12
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Equivalents of Mingle and Positive Paradox
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Abstract

Relevant logic is a proper subset of classical logic. It does not include among its theorems any of positive paradox A → (B → A) mingle A → (A → A) linear order (A → B) ν (B → A) unrelated extremes (A Λ Ā) → (B ν B̄) This article shows that those four formulas have different effects when added to relevant logic, and then lists many formulas that have the same effect as positive paradox or mingle.

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