∀ {R : Type u} {S : Type v} {ι : Type w} {σ : Type t} [inst : CommRing R] [inst_1 : CommRing S] [inst_2 : Algebra R S]
  [inst_3 : Finite σ] [inst_4 : SizeOf R] [inst_5 : SizeOf S] [inst_6 : SizeOf ι] [inst_7 : SizeOf σ]
  (toPreSubmersivePresentation : Algebra.PreSubmersivePresentation R S ι σ)
  (jacobian_isUnit : IsUnit toPreSubmersivePresentation.jacobian),
  sizeOf { toPreSubmersivePresentation := toPreSubmersivePresentation, jacobian_isUnit := jacobian_isUnit } =
    1 + sizeOf toPreSubmersivePresentation + sizeOf jacobian_isUnit