instCoeSubgroup — Mathlib

English

There is a canonical coercion from OpenNormalSubgroup G to Subgroup G given by H ↦ H.toOpenSubgroup.toSubgroup.

Русский

Существует каноническое приведение OpenNormalSubgroup G к Subgroup G, задаваемое H ↦ H.toOpenSubgroup.toSubgroup.

LaTeX

$$coe : OpenNormalSubgroup(G) → Subgroup(G) with coe(H) = H.toOpenSubgroup.toSubgroup$$

Lean4

@[to_additive]
instance : Coe (OpenNormalSubgroup G) (Subgroup G) where coe H := H.toOpenSubgroup.toSubgroup

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