Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.Inductive val_content_inject (f: meminj): memory_chunk -> val -> val -> Prop :=
  | val_content_inject_8_signed:
      forall n1 n2, Int.sign_ext 8 n1 = Int.sign_ext 8 n2 ->
      val_content_inject f Mint8signed (Vint n1) (Vint n2)
  | val_content_inject_8_unsigned:
      forall n1 n2, Int.zero_ext 8 n1 = Int.zero_ext 8 n2 ->
      val_content_inject f Mint8unsigned (Vint n1) (Vint n2)
  | val_content_inject_16_signed:
      forall n1 n2, Int.sign_ext 16 n1 = Int.sign_ext 16 n2 ->
      val_content_inject f Mint16signed (Vint n1) (Vint n2)
  | val_content_inject_16_unsigned:
      forall n1 n2, Int.zero_ext 16 n1 = Int.zero_ext 16 n2 ->
      val_content_inject f Mint16unsigned (Vint n1) (Vint n2)
  | val_content_inject_single:
      forall n1 n2, Float.singleoffloat n1 = Float.singleoffloat n2 ->
      val_content_inject f Mfloat32 (Vfloat n1) (Vfloat n2)
  | val_content_inject_base:
      forall chunk v1 v2, val_inject f v1 v2 ->
      val_content_inject f chunk v1 v2.

Lemma eval_make_unop: forall sp te tm a v op v', eval_expr tge sp te tm a v -> eval_unop op v = Some v' -> exists v'', eval_expr tge sp te tm (make_unop op a) v'' /\ Val.lessdef v' v''.