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An answer to a question of David A. RoseCaldas, Miguel 25 September 2017 (has links)
In 1984 David.A. Rose {3} asked the following question: When a surjection f : X →Y , is weak openness related to the condition Cl(f(U)) f(Cl(U)) for each open U X?. In this note we give an alternative answer to his question.
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