rintro (rfl | ⟨q, rfl, hq⟩) <;> simp [pow2_one, pow2_mul_two, *]
M : Type u_1
inst✝⁵ : Zero M
inst✝⁴ : One M
inst✝³ : Add M
inst✝² : Mul M
inst✝¹ : LT M
inst✝ : M ⊧ₘ* 𝐈open
p : M
⊢ (p = 1 ∨ ∃ q, p = 2 * q ∧ Pow2 q) → Pow2 p
no goals