Mathematics, 10.07.2019 02:30, katrinadoughty9356

115) recall that a map f: x y is an open map if for every set u that is open in x, the set (u) is open in y. which of the statements () of theorem 7.2 remain true if one replaces the word "continuous" throughout by the word open"?

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115) recall that a map f: x y is an open map if for every set u that is open in x, the set (u) is o...