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Mathematics, 10.07.2019 03:10 cxttiemsp021

Prove the following theorems: (a). prove that the real line with the standard topology is hausdorff. (b). prove that int(a n b) int(a) n int(b) (c). if x and y are topological spaces and f: x ? y is a homeomorphism. then if x is a hausdorff space then y is hausdorff.

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