[U (T S)] [(T U) (S U)] Use truth tables

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[U ∙­ (T ∨ S)] ≡ [(­T ∨ ­∼ U) ∙­ (­S ∨ ­U)]

Use truth tables to determine whether the following symbolized statements are tautologous, self-contradictory, or contingent.

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A Concise Introduction to Logic

ISBN: 978-1305958098

13th edition

Authors: Patrick J. Hurley, Lori Watson

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