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Theorems · Definition · algebraic geometry

AlgebraicGeometry.PresheafedSpace.IsOpenImmersion.toScheme

{X : AlgebraicGeometry.PresheafedSpace CommRingCat} →
  (Y : AlgebraicGeometry.Scheme) →
    (f : X ⟶ Y.toPresheafedSpace) → [H : AlgebraicGeometry.PresheafedSpace.IsOpenImmersion f] → AlgebraicGeometry.Scheme

If X ⟶ Y is an open immersion, and Y is a scheme, then so is X.

Defined in
Mathlib.AlgebraicGeometry.OpenImmersion
Cited by
4 results in Mathlib
Foundations
Depth 133 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AlgebraicGeometry.PresheafedSpace.IsOpenImmersion

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Cites10

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Cited by6

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