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Theorems · Theorem · algebraic geometry

AlgebraicGeometry.isFinite_iff_locallyOfFiniteType_of_jacobsonSpace

∀ {X Y : AlgebraicGeometry.Scheme} {f : X ⟶ Y} [Subsingleton ↥X] [AlgebraicGeometry.IsReduced X] [JacobsonSpace ↥Y],
  AlgebraicGeometry.IsFinite f ↔ AlgebraicGeometry.LocallyOfFiniteType f

If X is a Jacobson scheme and k is a field, Spec(k) ⟶ X is finite iff it is (locally) of finite type. (The statement is more general to allow the empty scheme as well)

Defined in
Mathlib.AlgebraicGeometry.Morphisms.Finite
Cited by
1 results in Mathlib
Foundations
Depth 223 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
SubsingletonAlgebraicGeometry.IsReducedJacobsonSpace

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