intro (_ : n₁ ≃ n₂) (_ : n₁ < m)
ℕ : Type
inst✝³ : Core ℕ
inst✝² : Induction ℕ
inst✝¹ : Addition ℕ
inst✝ : Sign ℕ
order_inst : Order ℕ
n₁ n₂ m : ℕ
⊢ n₁ ≃ n₂ → n₁ < m → n₂ < m
ℕ : Type
inst✝³ : Core ℕ
inst✝² : Induction ℕ
inst✝¹ : Addition ℕ
inst✝ : Sign ℕ
order_inst : Order ℕ
n₁ n₂ m : ℕ
x✝¹ : n₁ ≃ n₂
x✝ : n₁ < m
⊢ n₂ < m