Lemma 29.45.2 (0CEU)—The Stacks project

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Table of contents
Part 2: Schemes
Chapter 29: Morphisms of Schemes
Section 29.45: Universal homeomorphisms
Lemma 29.45.2 (cite)

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Lemma 29.45.2. The base change of a universal homeomorphism of schemes by any morphism of schemes is a universal homeomorphism.

Proof. This is immediate from the definition. $\square$

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