case bvar x => exact hb x (by simp)
L : Language
μ : Type v
μ₂ : Type u_1
μ₁ : Type u_2
b₁ b₂ : ℕ → UTerm L μ₂
e₁ e₂ : μ₁ → UTerm L μ₂
he : ∀ (x : μ₁), e₁ x = e₂ x
x : ℕ
hb : ∀ x_1 < (bvar x).bv, b₁ x_1 = b₂ x_1
⊢ b₁ x = b₂ x
no goals