Lemma 37.33.10. Let $f : X \to S$ be a morphism of affine schemes, which is standard syntomic (see Morphisms, Definition 29.30.1). Then there exists a diagram as in Lemma 37.33.1 such that in addition $f_0$ is standard syntomic.
Proof. This lemma is a copy of Algebra, Lemma 10.136.12. $\square$
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