Lemma 29.43.8 (01WF)—The Stacks project

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Table of contents
Part 2: Schemes
Chapter 29: Morphisms of Schemes
Section 29.43: Projective morphisms
Lemma 29.43.8 (cite)

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Lemma 29.43.8. A base change of a H-projective morphism is H-projective.

Proof. This is true because the base change of projective space over a scheme is projective space, and the fact that the base change of a closed immersion is a closed immersion, see Schemes, Lemma 26.18.2. $\square$

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