intro (_ : compare n m = Ordering.gt) (_ : compare k j = Ordering.gt)
ℕ : Type
inst✝⁴ : Core ℕ
inst✝³ : Induction ℕ
inst✝² : Addition ℕ
inst✝¹ : Sign ℕ
order_inst : Order ℕ
inst✝ : Compare ℕ
ord : Ordering
n m k j : ℕ
⊢ compare n m = Ordering.gt → compare k j = Ordering.gt → compare (n + k) (m + j) = Ordering.gt
ℕ : Type
inst✝⁴ : Core ℕ
inst✝³ : Induction ℕ
inst✝² : Addition ℕ
inst✝¹ : Sign ℕ
order_inst : Order ℕ
inst✝ : Compare ℕ
ord : Ordering
n m k j : ℕ
x✝¹ : compare n m = Ordering.gt
x✝ : compare k j = Ordering.gt
⊢ compare (n + k) (m + j) = Ordering.gt