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Mathematics, 30.07.2019 16:10 karenjunior

Prove that the relation~defined in lemma 10.2 is an equivalence relation on that is, for edges e, f, h e e(g), verify that (i) e~e (reflexive; (ii) if e~f, then f (iii) if e~f andf symmetric); h, then e~ h [transitive] n e

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Prove that the relation~defined in lemma 10.2 is an equivalence relation on that is, for edges e, f,...
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