Question: For reference, here is problem 5 from the previous homework: This is a continuation of Problem 5 from the previous homework. Let A C R

This is a continuation of Problem 5 from the previous homework. Let

For reference, here is problem 5 from the previous homework:

A C R be an open subset. Prove that a function f:

This is a continuation of Problem 5 from the previous homework. Let A C R be an open subset. Prove that a function f: A R is continuous if and only if for every open subset UCR, the pre-image f(U) C A is open.

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