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10. Let A C X and let 2' : A > X be the inclusion map. A retraction of X onto A is a continuous

10. Let A C X and let 2' : A > X be the inclusion map. A retraction of X onto A is a continuous map 7" : X > A such that the composition 7" 02' is the identity map on A. Prove that any retraction is a quotient map

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