∀ {R : Type u_2} {M : Type u_1} [inst : Monoid R] [inst_1 : AddMonoid M] [inst_2 : DistribMulAction R M]
  [inst_3 : DistribMulAction Rᵐᵒᵖ M] (x : TrivSqZeroExt R M), (x ^ 0).snd = TrivSqZeroExt.snd 1