Theorem RingCon.comap_nonUnitalRingHomId

Modification history

2026-06-19 09:20
Mathlib/RingTheory/Congruence/Defs.lean
feat: more lemmas about `{Setoid,Con,AddCon,RingCon}.comap` (#40697)
Added RingCon.comap_nonUnitalRingHomIdView on Github →