simp [fbit, bexp_two_mul_add_one_succ, div_cancel_left, div_mul]
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
a i : M
⊢ fbit (2 * a + 1) (i + 1) = fbit a i
no goals