Reorganize the files in the Lean backend a bit

5 files changed, 266 insertions, 241 deletions

diff --git a/backends/lean/Base/Primitives.lean b/backends/lean/Base/Primitives.lean
index ad8f2501..f80c2004 100644
--- a/backends/lean/Base/Primitives.lean
+++ b/backends/lean/Base/Primitives.lean
@@ -5,3 +5,4 @@ import Base.Primitives.ArraySlice
 import Base.Primitives.Vec
 import Base.Primitives.Alloc
 import Base.Primitives.Core
+import Base.Primitives.CoreConvertNum
diff --git a/backends/lean/Base/Primitives/Alloc.lean b/backends/lean/Base/Primitives/Alloc.lean
index 15fe1ff9..1b15d36d 100644
--- a/backends/lean/Base/Primitives/Alloc.lean
+++ b/backends/lean/Base/Primitives/Alloc.lean
@@ -1,6 +1,6 @@
 import Lean
 import Base.Primitives.Base
-import Base.Primitives.CoreOps
+import Base.Primitives.Core
 
 open Primitives
 open Result
diff --git a/backends/lean/Base/Primitives/ArraySlice.lean b/backends/lean/Base/Primitives/ArraySlice.lean
index 91ca7284..157f9df1 100644
--- a/backends/lean/Base/Primitives/ArraySlice.lean
+++ b/backends/lean/Base/Primitives/ArraySlice.lean
@@ -6,7 +6,7 @@ import Mathlib.Tactic.Linarith
 import Base.IList
 import Base.Primitives.Scalar
 import Base.Primitives.Range
-import Base.Primitives.CoreOps
+import Base.Primitives.Core
 import Base.Arith
 import Base.Progress.Base
 
diff --git a/backends/lean/Base/Primitives/CoreConvertNum.lean b/backends/lean/Base/Primitives/CoreConvertNum.lean
new file mode 100644
index 00000000..d76fba37
--- /dev/null
+++ b/backends/lean/Base/Primitives/CoreConvertNum.lean
@@ -0,0 +1,263 @@
+import Lean
+import Lean.Meta.Tactic.Simp
+import Init.Data.List.Basic
+import Mathlib.Tactic.Linarith
+import Base.IList
+import Base.Primitives.Scalar
+import Base.Primitives.ArraySlice
+import Base.Arith
+import Base.Progress.Base
+
+namespace Primitives
+
+open Result Error
+
+namespace core.convert
+
+namespace num -- core.convert.num
+
+-- Conversions
+def FromUsizeBool.from (b : Bool) : Usize :=
+  if b then 1#usize else 0#usize
+
+def FromU8Bool.from (b : Bool) : U8 :=
+  if b then 1#u8 else 0#u8
+
+def FromU16Bool.from (b : Bool) : U16 :=
+  if b then 1#u16 else 0#u16
+
+def FromU32Bool.from (b : Bool) : U32 :=
+  if b then 1#u32 else 0#u32
+
+def FromU64Bool.from (b : Bool) : U64 :=
+  if b then 1#u64 else 0#u64
+
+def FromU128Bool.from (b : Bool) : U128 :=
+  if b then 1#u128 else 0#u128
+
+def FromIsizeBool.from (b : Bool) : Isize :=
+  if b then 1#isize else 0#isize
+
+def FromI8Bool.from (b : Bool) : I8 :=
+  if b then 1#i8 else 0#i8
+
+def FromI16Bool.from (b : Bool) : I16 :=
+  if b then 1#i16 else 0#i16
+
+def FromI32Bool.from (b : Bool) : I32 :=
+  if b then 1#i32 else 0#i32
+
+def FromI64Bool.from (b : Bool) : I64 :=
+  if b then 1#i64 else 0#i64
+
+def FromI128Bool.from (b : Bool) : I128 :=
+  if b then 1#i128 else 0#i128
+
+def FromUsizeU8.from (x : U8) : Usize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromUsizeU16.from (x : U16) : Usize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromUsizeU32.from (x : U32) : Usize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromUsizeUsize.from (x : Usize) : Usize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromU8U8.from (x : U8) : U8 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromU16U8.from (x : U8) : U16 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU16U16.from (x : U16) : U16 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromU32U8.from (x : U8) : U32 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU32U16.from (x : U16) : U32 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU32U32.from (x : U32) : U32 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromU64U8.from (x : U8) : U64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU64U16.from (x : U16) : U64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU64U32.from (x : U32) : U64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU64U64.from (x : U64) : U64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromU128U8.from (x : U8) : U128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU128U16.from (x : U16) : U128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU128U32.from (x : U32) : U128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU128U64.from (x : U64) : U128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromU128U128.from (x : U128) : U128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromIsizeI8.from (x : I8) : Isize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromIsizeI16.from (x : I16) : Isize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromIsizeI32.from (x : I32) : Isize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromIsizeIsize.from (x : Isize) : Isize := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromI8I8.from (x : I8) : I8 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromI16I8.from (x : I8) : I16 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI16I16.from (x : I16) : I16 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromI32I8.from (x : I8) : I32 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI32I16.from (x : I16) : I32 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI32I32.from (x : I32) : I32 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromI64I8.from (x : I8) : I64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI64I16.from (x : I16) : I64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI64I32.from (x : I32) : I64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI64I64.from (x : I64) : I64 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+def FromI128I8.from (x : I8) : I128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI128I16.from (x : I16) : I128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI128I32.from (x : I32) : I128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI128I64.from (x : I64) : I128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+def FromI128I128.from (x : I128) : I128 := ⟨ x.val, by scalar_tac, by scalar_tac ⟩
+
+end num -- core.convert.num
+
+def FromUsizeU8 : core.convert.From Usize U8 := {
+  from_ := fun x => ok (num.FromUsizeU8.from x)
+}
+
+def FromUsizeU16 : core.convert.From Usize U16 := {
+  from_ := fun x => ok (num.FromUsizeU16.from x)
+}
+
+def FromUsizeU32 : core.convert.From Usize U32 := {
+  from_ := fun x => ok (num.FromUsizeU32.from x)
+}
+
+def FromUsizeUsize : core.convert.From Usize Usize := {
+  from_ := fun x => ok (num.FromUsizeUsize.from x)
+}
+
+def FromU8U8 : core.convert.From U8 U8 := {
+  from_ := fun x => ok (num.FromU8U8.from x)
+}
+
+def FromU16U8 : core.convert.From U16 U8 := {
+  from_ := fun x => ok (num.FromU16U8.from x)
+}
+
+def FromU16U16 : core.convert.From U16 U16 := {
+  from_ := fun x => ok (num.FromU16U16.from x)
+}
+
+def FromU32U8 : core.convert.From U32 U8 := {
+  from_ := fun x => ok (num.FromU32U8.from x)
+}
+
+def FromU32U16 : core.convert.From U32 U16 := {
+  from_ := fun x => ok (num.FromU32U16.from x)
+}
+
+def FromU32U32 : core.convert.From U32 U32 := {
+  from_ := fun x => ok (num.FromU32U32.from x)
+}
+
+def FromU64U8 : core.convert.From U64 U8 := {
+  from_ := fun x => ok (num.FromU64U8.from x)
+}
+
+def FromU64U16 : core.convert.From U64 U16 := {
+  from_ := fun x => ok (num.FromU64U16.from x)
+}
+
+def FromU64U32 : core.convert.From U64 U32 := {
+  from_ := fun x => ok (num.FromU64U32.from x)
+}
+
+def FromU64U64 : core.convert.From U64 U64 := {
+  from_ := fun x => ok (num.FromU64U64.from x)
+}
+
+def FromU128U8 : core.convert.From U128 U8 := {
+  from_ := fun x => ok (num.FromU128U8.from x)
+}
+
+def FromU128U16 : core.convert.From U128 U16 := {
+  from_ := fun x => ok (num.FromU128U16.from x)
+}
+
+def FromU128U32 : core.convert.From U128 U32 := {
+  from_ := fun x => ok (num.FromU128U32.from x)
+}
+
+def FromU128U64 : core.convert.From U128 U64 := {
+  from_ := fun x => ok (num.FromU128U64.from x)
+}
+
+def FromU128U128 : core.convert.From U128 U128 := {
+  from_ := fun x => ok (num.FromU128U128.from x)
+}
+
+def FromIsizeI8 : core.convert.From Isize I8 := {
+  from_ := fun x => ok (num.FromIsizeI8.from x)
+}
+
+def FromIsizeI16 : core.convert.From Isize I16 := {
+  from_ := fun x => ok (num.FromIsizeI16.from x)
+}
+
+def FromIsizeI32 : core.convert.From Isize I32 := {
+  from_ := fun x => ok (num.FromIsizeI32.from x)
+}
+
+def FromIsizeIsize : core.convert.From Isize Isize := {
+  from_ := fun x => ok (num.FromIsizeIsize.from x)
+}
+
+def FromI8I8 : core.convert.From I8 I8 := {
+  from_ := fun x => ok (num.FromI8I8.from x)
+}
+
+def FromI16I8 : core.convert.From I16 I8 := {
+  from_ := fun x => ok (num.FromI16I8.from x)
+}
+
+def FromI16I16 : core.convert.From I16 I16 := {
+  from_ := fun x => ok (num.FromI16I16.from x)
+}
+
+def FromI32I8 : core.convert.From I32 I8 := {
+  from_ := fun x => ok (num.FromI32I8.from x)
+}
+
+def FromI32I16 : core.convert.From I32 I16 := {
+  from_ := fun x => ok (num.FromI32I16.from x)
+}
+
+def FromI32I32 : core.convert.From I32 I32 := {
+  from_ := fun x => ok (num.FromI32I32.from x)
+}
+
+def FromI64I8 : core.convert.From I64 I8 := {
+  from_ := fun x => ok (num.FromI64I8.from x)
+}
+
+def FromI64I16 : core.convert.From I64 I16 := {
+  from_ := fun x => ok (num.FromI64I16.from x)
+}
+
+def FromI64I32 : core.convert.From I64 I32 := {
+  from_ := fun x => ok (num.FromI64I32.from x)
+}
+
+def FromI64I64 : core.convert.From I64 I64 := {
+  from_ := fun x => ok (num.FromI64I64.from x)
+}
+
+def FromI128I8 : core.convert.From I128 I8 := {
+  from_ := fun x => ok (num.FromI128I8.from x)
+}
+
+def FromI128I16 : core.convert.From I128 I16 := {
+  from_ := fun x => ok (num.FromI128I16.from x)
+}
+
+def FromI128I32 : core.convert.From I128 I32 := {
+  from_ := fun x => ok (num.FromI128I32.from x)
+}
+
+def FromI128I64 : core.convert.From I128 I64 := {
+  from_ := fun x => ok (num.FromI128I64.from x)
+}
+
+def FromI128I128 : core.convert.From I128 I128 := {
+  from_ := fun x => ok (num.FromI128I128.from x)
+}
+
+end core.convert
+
+end Primitives
diff --git a/backends/lean/Base/Primitives/Scalar.lean b/backends/lean/Base/Primitives/Scalar.lean
index 0ba538b7..9eb5a794 100644
--- a/backends/lean/Base/Primitives/Scalar.lean
+++ b/backends/lean/Base/Primitives/Scalar.lean
@@ -1394,245 +1394,6 @@ instance (ty : ScalarTy) : DecidableEq (Scalar ty) :=
 @[simp] theorem Scalar.neq_to_neq_val {ty} : ∀ {i j : Scalar ty}, (¬ i = j) ↔ ¬ i.val = j.val := by
   simp [eq_equiv]
 
--- Conversions
-def core.convert.num.FromUsizeBool.from (b : Bool) : Usize :=
-  if b then 1#usize else 0#usize
-
-def core.convert.num.FromU8Bool.from (b : Bool) : U8 :=
-  if b then 1#u8 else 0#u8
-
-def core.convert.num.FromU16Bool.from (b : Bool) : U16 :=
-  if b then 1#u16 else 0#u16
-
-def core.convert.num.FromU32Bool.from (b : Bool) : U32 :=
-  if b then 1#u32 else 0#u32
-
-def core.convert.num.FromU64Bool.from (b : Bool) : U64 :=
-  if b then 1#u64 else 0#u64
-
-def core.convert.num.FromU128Bool.from (b : Bool) : U128 :=
-  if b then 1#u128 else 0#u128
-
-def core.convert.num.FromIsizeBool.from (b : Bool) : Isize :=
-  if b then 1#isize else 0#isize
-
-def core.convert.num.FromI8Bool.from (b : Bool) : I8 :=
-  if b then 1#i8 else 0#i8
-
-def core.convert.num.FromI16Bool.from (b : Bool) : I16 :=
-  if b then 1#i16 else 0#i16
-
-def core.convert.num.FromI32Bool.from (b : Bool) : I32 :=
-  if b then 1#i32 else 0#i32
-
-def core.convert.num.FromI64Bool.from (b : Bool) : I64 :=
-  if b then 1#i64 else 0#i64
-
-def core.convert.num.FromI128Bool.from (b : Bool) : I128 :=
-  if b then 1#i128 else 0#i128
-
-def core.convert.num.FromUsizeU8.from (x : U8) : Usize := sorry
-def core.convert.num.FromUsizeU16.from (x : U16) : Usize := sorry
-def core.convert.num.FromUsizeU32.from (x : U32) : Usize := sorry
-def core.convert.num.FromUsizeUsize.from (x : Usize) : Usize := sorry
-
-def core.convert.num.FromU8U8.from (x : U8) : U8 := sorry
-
-def core.convert.num.FromU16U8.from (x : U8) : U16 := sorry
-def core.convert.num.FromU16U16.from (x : U16) : U16 := sorry
-
-def core.convert.num.FromU32U8.from (x : U8) : U32 := sorry
-def core.convert.num.FromU32U16.from (x : U16) : U32 := sorry
-def core.convert.num.FromU32U32.from (x : U32) : U32 := sorry
-
-def core.convert.num.FromU64U8.from (x : U8) : U64 := sorry
-def core.convert.num.FromU64U16.from (x : U16) : U64 := sorry
-def core.convert.num.FromU64U32.from (x : U32) : U64 := sorry
-def core.convert.num.FromU64U64.from (x : U64) : U64 := sorry
-
-def core.convert.num.FromU128U8.from (x : U8) : U128 := sorry
-def core.convert.num.FromU128U16.from (x : U16) : U128 := sorry
-def core.convert.num.FromU128U32.from (x : U32) : U128 := sorry
-def core.convert.num.FromU128U64.from (x : U64) : U128 := sorry
-def core.convert.num.FromU128U128.from (x : U128) : U128 := sorry
-
-def core.convert.num.FromIsizeI8.from (x : I8) : Isize := sorry
-def core.convert.num.FromIsizeI16.from (x : I16) : Isize := sorry
-def core.convert.num.FromIsizeI32.from (x : I32) : Isize := sorry
-def core.convert.num.FromIsizeIsize.from (x : Isize) : Isize := sorry
-
-def core.convert.num.FromI8I8.from (x : I8) : I8 := sorry
-
-def core.convert.num.FromI16I8.from (x : I8) : I16 := sorry
-def core.convert.num.FromI16I16.from (x : I16) : I16 := sorry
-
-def core.convert.num.FromI32I8.from (x : I8) : I32 := sorry
-def core.convert.num.FromI32I16.from (x : I16) : I32 := sorry
-def core.convert.num.FromI32I32.from (x : I32) : I32 := sorry
-
-def core.convert.num.FromI64I8.from (x : I8) : I64 := sorry
-def core.convert.num.FromI64I16.from (x : I16) : I64 := sorry
-def core.convert.num.FromI64I32.from (x : I32) : I64 := sorry
-def core.convert.num.FromI64I64.from (x : I64) : I64 := sorry
-
-def core.convert.num.FromI128I8.from (x : I8) : I128 := sorry
-def core.convert.num.FromI128I16.from (x : I16) : I128 := sorry
-def core.convert.num.FromI128I32.from (x : I32) : I128 := sorry
-def core.convert.num.FromI128I64.from (x : I64) : I128 := sorry
-def core.convert.num.FromI128I128.from (x : I128) : I128 := sorry
-
-def core.convert.FromUsizeU8 : core.convert.From Usize U8 := {
-  from_ := fun x => ok (core.convert.num.FromUsizeU8.from x)
-}
-
-def core.convert.FromUsizeU16 : core.convert.From Usize U16 := {
-  from_ := fun x => ok (core.convert.num.FromUsizeU16.from x)
-}
-
-def core.convert.FromUsizeU32 : core.convert.From Usize U32 := {
-  from_ := fun x => ok (core.convert.num.FromUsizeU32.from x)
-}
-
-def core.convert.FromUsizeUsize : core.convert.From Usize Usize := {
-  from_ := fun x => ok (core.convert.num.FromUsizeUsize.from x)
-}
-
-def core.convert.FromU8U8 : core.convert.From U8 U8 := {
-  from_ := fun x => ok (core.convert.num.FromU8U8.from x)
-}
-
-def core.convert.FromU16U8 : core.convert.From U16 U8 := {
-  from_ := fun x => ok (core.convert.num.FromU16U8.from x)
-}
-
-def core.convert.FromU16U16 : core.convert.From U16 U16 := {
-  from_ := fun x => ok (core.convert.num.FromU16U16.from x)
-}
-
-def core.convert.FromU32U8 : core.convert.From U32 U8 := {
-  from_ := fun x => ok (core.convert.num.FromU32U8.from x)
-}
-
-def core.convert.FromU32U16 : core.convert.From U32 U16 := {
-  from_ := fun x => ok (core.convert.num.FromU32U16.from x)
-}
-
-def core.convert.FromU32U32 : core.convert.From U32 U32 := {
-  from_ := fun x => ok (core.convert.num.FromU32U32.from x)
-}
-
-def core.convert.FromU64U8 : core.convert.From U64 U8 := {
-  from_ := fun x => ok (core.convert.num.FromU64U8.from x)
-}
-
-def core.convert.FromU64U16 : core.convert.From U64 U16 := {
-  from_ := fun x => ok (core.convert.num.FromU64U16.from x)
-}
-
-def core.convert.FromU64U32 : core.convert.From U64 U32 := {
-  from_ := fun x => ok (core.convert.num.FromU64U32.from x)
-}
-
-def core.convert.FromU64U64 : core.convert.From U64 U64 := {
-  from_ := fun x => ok (core.convert.num.FromU64U64.from x)
-}
-
-def core.convert.FromU128U8 : core.convert.From U128 U8 := {
-  from_ := fun x => ok (core.convert.num.FromU128U8.from x)
-}
-
-def core.convert.FromU128U16 : core.convert.From U128 U16 := {
-  from_ := fun x => ok (core.convert.num.FromU128U16.from x)
-}
-
-def core.convert.FromU128U32 : core.convert.From U128 U32 := {
-  from_ := fun x => ok (core.convert.num.FromU128U32.from x)
-}
-
-def core.convert.FromU128U64 : core.convert.From U128 U64 := {
-  from_ := fun x => ok (core.convert.num.FromU128U64.from x)
-}
-
-def core.convert.FromU128U128 : core.convert.From U128 U128 := {
-  from_ := fun x => ok (core.convert.num.FromU128U128.from x)
-}
-
-def core.convert.FromIsizeI8 : core.convert.From Isize I8 := {
-  from_ := fun x => ok (core.convert.num.FromIsizeI8.from x)
-}
-
-def core.convert.FromIsizeI16 : core.convert.From Isize I16 := {
-  from_ := fun x => ok (core.convert.num.FromIsizeI16.from x)
-}
-
-def core.convert.FromIsizeI32 : core.convert.From Isize I32 := {
-  from_ := fun x => ok (core.convert.num.FromIsizeI32.from x)
-}
-
-def core.convert.FromIsizeIsize : core.convert.From Isize Isize := {
-  from_ := fun x => ok (core.convert.num.FromIsizeIsize.from x)
-}
-
-def core.convert.FromI8I8 : core.convert.From I8 I8 := {
-  from_ := fun x => ok (core.convert.num.FromI8I8.from x)
-}
-
-def core.convert.FromI16I8 : core.convert.From I16 I8 := {
-  from_ := fun x => ok (core.convert.num.FromI16I8.from x)
-}
-
-def core.convert.FromI16I16 : core.convert.From I16 I16 := {
-  from_ := fun x => ok (core.convert.num.FromI16I16.from x)
-}
-
-def core.convert.FromI32I8 : core.convert.From I32 I8 := {
-  from_ := fun x => ok (core.convert.num.FromI32I8.from x)
-}
-
-def core.convert.FromI32I16 : core.convert.From I32 I16 := {
-  from_ := fun x => ok (core.convert.num.FromI32I16.from x)
-}
-
-def core.convert.FromI32I32 : core.convert.From I32 I32 := {
-  from_ := fun x => ok (core.convert.num.FromI32I32.from x)
-}
-
-def core.convert.FromI64I8 : core.convert.From I64 I8 := {
-  from_ := fun x => ok (core.convert.num.FromI64I8.from x)
-}
-
-def core.convert.FromI64I16 : core.convert.From I64 I16 := {
-  from_ := fun x => ok (core.convert.num.FromI64I16.from x)
-}
-
-def core.convert.FromI64I32 : core.convert.From I64 I32 := {
-  from_ := fun x => ok (core.convert.num.FromI64I32.from x)
-}
-
-def core.convert.FromI64I64 : core.convert.From I64 I64 := {
-  from_ := fun x => ok (core.convert.num.FromI64I64.from x)
-}
-
-def core.convert.FromI128I8 : core.convert.From I128 I8 := {
-  from_ := fun x => ok (core.convert.num.FromI128I8.from x)
-}
-
-def core.convert.FromI128I16 : core.convert.From I128 I16 := {
-  from_ := fun x => ok (core.convert.num.FromI128I16.from x)
-}
-
-def core.convert.FromI128I32 : core.convert.From I128 I32 := {
-  from_ := fun x => ok (core.convert.num.FromI128I32.from x)
-}
-
-def core.convert.FromI128I64 : core.convert.From I128 I64 := {
-  from_ := fun x => ok (core.convert.num.FromI128I64.from x)
-}
-
-def core.convert.FromI128I128 : core.convert.From I128 I128 := {
-  from_ := fun x => ok (core.convert.num.FromI128I128.from x)
-}
-
 -- Leading zeros
 def core.num.Usize.leading_zeros (x : Usize) : U32 := sorry
 def core.num.U8.leading_zeros (x : U8) : U32 := sorry