Prove the validity of the following expressions (assume that the origin of B is contained in B and that Problems 9.14 and 9.15 are true):
(a) A is a subset (subimage) of A • B.
(b) If C is a subset of D,then C• B is a subset of D • B.
(c) (A• B) • B = A • B.
9.14 Prove the validity of the duality expressions and
9.15 Prove the validity of the following expressions:
(a) A ∘ B is a subset (subimage) of A.
(b) If C is a subset of D,then C ∘ B is a subset of D ∘ B.
(c) (A ∘ B) ∘ B = A ∘ B.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.