exact lt_of_le_of_ne (ppi.pow2.sq.two_le $ by simp; rintro rfl; exact sppm.not_lenbit_one hi) (by simp)
case h
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* 𝐈𝚫₀
i : M
ppi : PPow2 i
m : M
hm : m < 2 * i
sppm : SPPow2 m
hi : LenBit i m
⊢ 2 < i ^ 2
no goals