[Complex analysis] How to prove this: Let A subset of C and z0 in A. If z0 is an accumulation point of A, then a function f:A to C is continuous in z0 if, and only if, lim_{z to z0}f(z) exists and is equal to f(z0).

Complex analysis How to prove this Let A subset of C and z0 in A If z0 is an accumulation point of A then a function fA to C is continuous in z0 if and only if class=


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