f is said to be an open mapping iff the image by f of any open set is open. Let TI be the lower limit topology generated by all unions of intervals of the form {[a,b):a,beR,as

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Q: 2.2 Base for a Topology 39 Let X be the space of reals with the topology T = {X, [0, 1], 0} (Example…

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Q: f is said to be an open mapping iff the image by f of any open set is open. Let TI be the lower…

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