(A*B)*cap(A*B)=(A*(B*cap))*(B*(A*cap)) – InterviewSolution

1.	(AB)cap(AB)=(A(Bcap))(B(Acap))
Answer» let A =(1,2,3)&. B=(3,4,5)LHS=(A×B)intersect(B×A){(1 2 3)×(3 4 5)}intersect

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