Theorem: LO.FirstOrder.Arith.Model.length_exponential (Arithmetization/ISigmaZero/Exponential/Log.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* 𝐈𝚺₁
a : M
⊢ ‖exp a‖ = a + 1
Tactic:
simp [length_of_pos (exp_pos a)]
State after:
no goals