Let `A=(1,2,3,4,5,6} and Let R={(a,b):a,b in A and B=a+1}.` Show that R is (i) not

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Let `A=(1,2,3,4,5,6} and Let R={(a,b):a,b in A and B=a+1}.` Show that R is (i) not reflexive (ii) not symmetric and (iii) not transititve .
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