Mathlib Map

Structures · Topology

SSet.Subcomplex.PairingCore.IsProper

The condition that h : A.PairingCore is proper, i.e. for each s : h.ι, the type (II) simplex h.type₂ s is uniquely a 1-codimensional face of the type (I) simplex h.type₁ s.

Defined in
Mathlib.AlgebraicTopology.SimplicialSet.AnodyneExtensions.PairingCore
Shape
One type argument · adds isUniquelyCodimOneFace

Extends0

Extends nothing: this is a root of the hierarchy.

Extended by2

Forgetful instances

Provided automatically by

Concrete types that are instances0

No instance on a concrete type; it is reached through other classes.

How is a type an instance?

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Assumed by10

Ancestors0

No ancestors.