extra stuff

src/Init/Data/Int/DivModLemmas.lean

@@ -543,23 +543,6 @@ theorem emod_eq_of_lt {a b : Int} (H1 : 0 ≤ a) (H2 : a < b) : a % b = a :=
   match a, b, eq_ofNat_of_zero_le H1, eq_ofNat_of_zero_le b0 with
   | _, _, ⟨_, rfl⟩, ⟨_, rfl⟩ => congrArg ofNat <| Nat.mod_eq_of_lt (Int.ofNat_lt.1 H2)
 
--- #check Int.ediv_eq_zero_of_lt
--- #eval (-3)/10
--- #eval (-3)%10
-
--- theorem emod_eq_of_gt_lt {a b : Int} (H1 : -b < a) (H2 : a < b) : a % b = a := by
---   rw [Int.emod_def]
---   have : a/b = 0 := by
---     simp [Int.ediv_]
---   rw [natAbs_eq_zero] at this
---   simp [this]
-
-
-
-
-  -- match a, b, eq_ofNat_of_zero_le H1, eq_ofNat_of_zero_le b0 with
-  -- | _, _, ⟨_, rfl⟩, ⟨_, rfl⟩ => congrArg ofNat <| Nat.mod_eq_of_lt (Int.ofNat_lt.1 H2)
-
 @[simp] theorem emod_self_add_one {x : Int} (h : 0 ≤ x) : x % (x + 1) = x :=
   emod_eq_of_lt h (Int.lt_succ x)