Let f: X → Y be a continuous map from a compact space X to a Hausdorff space Y. Let C be a closed subspace of Y, and let U be an open neighborhood of f-¹(C) in X. Show that there is an open neighborhood V of C in Y such that f-¹(V) is contained in U.
Let f: X → Y be a continuous map from a compact space X to a Hausdorff space Y. Let C be a closed subspace of Y, and let U be an open neighborhood of f-¹(C) in X. Show that there is an open neighborhood V of C in Y such that f-¹(V) is contained in U.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.5: The Kernel And Range Of A Linear Transformation
Problem 38EQ
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