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The following is an exercise in Topology by Munkres.

  • Show that if f is a continuous map from X to Y where X is paracompact then the subspace f(X) of Y need not be paracompact.

I am having trouble constructing such a function. Any help would be appreciated. Thank You.

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HINT: Every discrete space is paracompact, and every map whose domain is a discrete space is continuous. Find a non-paracompact space $Y$ and just ...

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    @user20694: We’ve all been there a time or two. :-)2012-04-09