$f: X rightarrow Y$ is continuous between two topological spaces. Show $forall A subseteq X$ we...
Channel: Roel Van de Paar
Date: 2021-01-27

Mathematics: $f: X rightarrow Y$ is continuous between two topological spaces. Show $forall A subseteq X$ we have $f(overline{A}) subseteq overline{f(A)}$

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