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Theorems · Definition · algebraic geometry

AlgebraicGeometry.Scheme.RationalMap.toPartialMap

{X Y : AlgebraicGeometry.Scheme} → [AlgebraicGeometry.IsReduced X] → [Y.IsSeparated] → X.RationalMap Y → X.PartialMap Y

If f : X ⤏ Y is a rational map from a reduced scheme to a separated scheme, then f can be represented as a partial map on its domain of definition.

Defined in
Mathlib.AlgebraicGeometry.Birational.RationalMap
Cited by
3 results in Mathlib
Foundations
Depth 228 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
AlgebraicGeometry.IsReducedAlgebraicGeometry.Scheme.IsSeparated

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Cites15

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