Let R be aset of real numbers. Describe the toplogy generted by aset S = {[x, Xx+1},x=R for di A→B the follwing are equivalent there exists ahomomorphism BIB A Withe BIA let X be toplogyical and A, Be PIXI Show that whether the statement is true or not int(AUB) = int(A) Vint(B)

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