Theorem: LO.FirstOrder.Arith.Model.ext_lt (Arithmetization/ISigmaZero/Exponential/Exp.lean)

State before:
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
u z : M
pos : 0 < u
⊢ ext u z < u
Tactic:
simp [ext, pos]
State after:
no goals