Open and closed maps: Revision history

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17 September 2025

  • curprev 03:0003:00, 17 September 2025 imported>Doorknob213 m 31,393 bytes +31,393 A function f : X to Y is continuous if and only if the preimage of every open/closed set in Y is also open/closed in X respectfully. Was written as just "if" and not "if and only if" as defined by cited source.
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