Let be the set consisting of , R, and each interval (a,), where a R. It is knownthat (R
Chapter 16, Problem 16.21(choose chapter or problem)
Let be the set consisting of , R, and each interval (a,), where a R. It is knownthat (R, ) is a topological space. (Dont attempt to prove this.) Show that (R, ) is nota Hausdorff space.
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