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## Using Applying and Reasoning about Mathematics Proof

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## Announcements CS311H Discrete Mathematics

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## Math 232 Discrete Math Notes 2.1 Direct Proofs and

discrete math proof by contradiction? Yahoo Answers. Math 232 - discrete math notes in this next example, 2.2 more methods of proof a proof by contradiction establishes that p is true by assuming that p is false Proof by contradiction (also known as indirect proof or the method of reductio ad absurdum) is a common proof technique that is based on a very simple principle.

Cs 19: discrete mathematics amit chakrabarti proofs by contradiction and by mathematical induction direct proofs at this point, we have seen a few examples of proof by contradiction: since mathematics is consistent (at least we hope so), example 2.6.3 $\sqrt 3\notin \q$:

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Six different examples of proof by contradiction. the examples include theorems and proofs in algebra, geometry, number theory, and readl life. math 232 - discrete math notes in this next example, 2.2 more methods of proof a proof by contradiction establishes that p is true by assuming that p is false

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Proof by contradiction (example 2) вђўshow that 2 is irrational. вђўproof : assume on the contrary that it is rational. cs 2336 discrete mathematics proof by contradiction: since mathematics is consistent (at least we hope so), example 2.6.3 $\sqrt 3\notin \q$: