Mathematics
Mathematics, 23.06.2020 19:01, sammysosa121832

(a) Explain what is wrong with the following ‘proof’:Statement:IfRis symmetric and transitive, thenRis reflexive."Proof":SupposeRis symmetric and transitive. Symmetric means thatx R yimpliesy R x. We apply transitivity tox R yandy R xto givex R x. Therefore, Ris reflexive.(b) Give an example of a relation on a set that is both symmetric and tran-sitive, but not reflexive

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(a) Explain what is wrong with the following ‘proof’:Statement:IfRis symmetric and transitive, thenR...

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