[reset_reuse]
def Array.mapMUnsafe.map._at.applyProjectionRules._spec_1._rarg (x_1 : obj) (x_2 : usize) (x_3 : usize) (x_4 : obj) : obj :=
  let x_5 : u8 := USize.decLt x_3 x_2;
  case x_5 : obj of
  Bool.false →
    ret x_4
  Bool.true →
    let x_6 : obj := Array.uget ◾ x_4 x_3 ◾;
    let x_7 : obj := 0;
    let x_8 : obj := Array.uset ◾ x_4 x_3 x_7 ◾;
    let x_9 : obj := proj[0] x_6;
    case x_9 : obj of
    Prod.mk →
      case x_9 : obj of
      Prod.mk →
        let x_10 : obj := proj[0] x_9;
        let x_11 : obj := proj[1] x_9;
        let x_18 : obj := reset[2] x_9;
        let x_12 : obj := reuse x_18 in ctor_0[Prod.mk] x_10 x_11;
        let x_13 : obj := ctor_0[Prod.mk] x_12 x_1;
        let x_14 : usize := 1;
        let x_15 : usize := USize.add x_3 x_14;
        let x_16 : obj := Array.uset ◾ x_8 x_3 x_13 ◾;
        let x_17 : obj := Array.mapMUnsafe.map._at.applyProjectionRules._spec_1._rarg x_1 x_2 x_15 x_16;
        ret x_17
def Array.mapMUnsafe.map._at.applyProjectionRules._spec_1 (x_1 : ◾) (x_2 : ◾) (x_3 : ◾) : obj :=
  let x_4 : obj := pap Array.mapMUnsafe.map._at.applyProjectionRules._spec_1._rarg;
  ret x_4
def applyProjectionRules._rarg (x_1 : obj) (x_2 : obj) : obj :=
  let x_3 : usize := Array.usize ◾ x_1;
  let x_4 : usize := 0;
  let x_5 : obj := Array.mapMUnsafe.map._at.applyProjectionRules._spec_1._rarg x_2 x_3 x_4 x_1;
  ret x_5
def applyProjectionRules (x_1 : ◾) (x_2 : ◾) (x_3 : ◾) : obj :=
  let x_4 : obj := pap applyProjectionRules._rarg;
  ret x_4