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seen Feb 3 '13 at 22:15

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awarded  Informed
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revised Help showing this is an equivalence relation
deleted 244 characters in body
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awarded  Editor
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revised Help showing this is an equivalence relation
added 16 characters in body
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comment Help showing this is an equivalence relation
suppose to be the symbol for all integers which is the other Z
Feb
2
comment Help showing this is an equivalence relation
its exactly as it is written and I'm so confused with those two questions and not sure how to solve them
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asked Help showing this is an equivalence relation