simp [show x = 0 from by simpa using hx]
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
x : M
hx : 2 * x = 0
⊢ 1 = 1 ^ 2 ∧ Exponential x 1
no goals