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let R be the relation on the set Z of all integers defined by (x,y)∈R⇒x-y divisible by n. prove that: [a]: (x,x)∈R for all x∈Z [B]: (x,y)∈ R⇒(y,x)∈ R for all x,y∈R |
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Answer» let R be the relation on the set Z of all integers defined by (x,y)∈R⇒x-y divisible by n. prove that: [a]: (x,x)∈R for all x∈Z [B]: (x,y)∈ R⇒(y,x)∈ R for all x,y∈R |
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