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Theorems · Definition · algebraic geometry

AlgebraicGeometry.Scheme.Hom.liftCoborder

{X Y : AlgebraicGeometry.Scheme} →
  (f : X ⟶ Y) → [inst : AlgebraicGeometry.IsImmersion f] → X ⟶ ↑(AlgebraicGeometry.Scheme.Hom.coborderRange f)

The first part of the factorization of an immersion f : X ⟶ Y to a closed immersion f.liftCoborder : X ⟶ f.coborderRange and a dominant open immersion f.coborderRange.ι.

Defined in
Mathlib.AlgebraicGeometry.Morphisms.Immersion
Cited by
6 results in Mathlib
Foundations
Depth 141 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AlgebraicGeometry.IsImmersion

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