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Open and closed maps
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==See also== * {{annotated link|Almost open map}} * {{annotated link|Closed graph}} * {{annotated link|Closed linear operator}} * {{annotated link|Local homeomorphism}} * {{annotated link|Quasi-open map}} * {{annotated link|Quotient map (topology)}} * {{annotated link|Perfect map}} * {{annotated link|Proper map}} * {{annotated link|Sequence covering map}}
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