Mathlib Map

Structures · Topology

SSet.Nonsingular

A simplicial set X is nonsingular if for any nondegenerate simplex x (of dimension n), the corresponding morphism Δ[n] ⟶ X is a monomorphism.

Defined in
Mathlib.AlgebraicTopology.SimplicialSet.Nonsingular
Shape
One type argument · adds mono

Extends0

Extends nothing: this is a root of the hierarchy.

Extended by0

Nothing extends this class yet.

Forgetful instances

Every SSet.Nonsingular is also a

Concrete types that are instances4

  • CategoryTheory.Functor.obj
  • CategoryTheory.MonoidalCategoryStruct.tensorObj
  • SSet.Subcomplex.toSSet
  • CategoryTheory.nerve

How is a type an instance?

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Assumed by33

Ancestors1