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Theorems · Theorem · algebraic geometry

AlgebraicGeometry.Scheme.PartialMap.isDominant_hom_iff_isDominant_restrict_hom

∀ {X Y : AlgebraicGeometry.Scheme} (f : X.PartialMap Y) (U : X.Opens) (hU : Dense ↑U) (hU' : U ≤ f.domain),
  AlgebraicGeometry.IsDominant f.hom ↔ AlgebraicGeometry.IsDominant (f.restrict U hU hU').hom

f.hom is dominant iff any restriction of f is.

Defined in
Mathlib.AlgebraicGeometry.Birational.Dominant
Cited by
1 results in Mathlib
Foundations
Depth 144 from the axioms · uses propext, Classical.choice, Quot.sound

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