∀ {R : Type u} [inst : NonUnitalNonAssocRing R] {S : Type u_1} [inst_1 : NonUnitalNonAssocRing S] (e : R ≃+* S)
  (s : ↥(Subsemigroup.center S)), ↑((NonUnitalSubring.centerCongr e).symm s) = (↑e).symm ↑s