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(Solved): number 19 to be answered only Use an element argument to prove each statement in 7-19. Assume that a ...
number 19 to be answered only
Use an element argument to prove each statement in 7-19. Assume that all sets are subsets of a universal set U. 19. Jor all sets AAz,By and Cy(A−B)U(C−B)=(AD(C)−BBs(A−B)(C(C−B)=(A)(C)−BA⊆B∩CABB⊆C0 18. Jor all sets AAvBBy and CyA×(B∪C)=(A×B)∪(A×(C) 19. For all sets A,B, and C, A×(B∩C)=(A×B)∩(A×C).