∀ {Γ : Type u_1} {R : Type u_2} [inst : PartialOrder Γ] [inst_1 : Zero R] (coeff coeff_1 : Γ → R)
  (e_coeff : coeff = coeff_1) (isPWO_support' : (Function.support coeff).IsPWO),
  { coeff := coeff, isPWO_support' := isPWO_support' } = { coeff := coeff_1, isPWO_support' := ⋯ }