'True proposition' presentation slideshows

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Does truth matter?

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Does truth matter?

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Lecture 1.3: Predicate Logic

Lecture 1.3: Predicate Logic. CS 250, Discrete Structures, Fall 2015 Nitesh Saxena Adopted from previous lectures by Cinda Heeren. Course Admin. Slides from last lectures all online Both ppt and pdf Any questions?. Outline. Predicate Logic (contd.).

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PROOF BY CONTRADICTION

PROOF BY CONTRADICTION. proof by contradiction. Let r be a proposition. A proof of r by contradiction consists of proving that not(r) implies a contradiction, thus concluding that not(r) is false, which implies that r is true. proof by contradiction. In particular if r is

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