PROOF.fm0c: def of bendtorch@1.3.0.0
Import: import bendtorch@1.3.0.0/PROOF.bend as PROOF
Lines 483-491 of bendtorch@1.3.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bendtorch@1.3.0.0/PROOF.bend&start_line=483&end_line=491

import Base
import bendtorch@1.3.0.0/main.bend as T

# depth 0: the two leaves' loops, appended
def fm0c(-l: List<&1, T.FS>, -r: List<&1, T.FS>, -n: Nat, +h: Nat, +dm: T.Dm, -l1y: List<&1, T.FS>, +sl: {l1y == l : List<&1, T.FS>}, fl: {T.fleaf_full(l, h, dm, Nil{}) == ffmap(h, dm, l) : List<&1, Array<F32>>}, r1: List<&1, T.FS>, sr: {r1 == r : List<&1, T.FS>}, fr: {T.fleaf_full(r, h, dm, Nil{}) == ffmap(h, dm, r) : List<&1, Array<F32>>}, c: MARF<h, dm, l1y, r>) -> MRF<0n, T.Halves{l, r}, n, h, dm>:
  match c:
    case MARF{l2, s2, fa}:
      MRF{List.append(&1, T.FS, l2, r1), app2(T.FS, l2, l, r1, r, Equal.trans(List<&1, T.FS>, l2, l1y, l, s2, sl), sr),
        Equal.trans(List<&1, Array<F32>>, List.append(&1, Array<F32>, T.fleaf_full(l, h, dm, Nil{}), T.fleaf_full(r, h, dm, Nil{})), List.append(&1, Array<F32>, ffmap(h, dm, l), ffmap(h, dm, r)), ffmap(h, dm, List.append(&1, T.FS, l, r)), app2(Array<F32>, T.fleaf_full(l, h, dm, Nil{}), ffmap(h, dm, l), T.fleaf_full(r, h, dm, Nil{}), ffmap(h, dm, r), fl, fr),
          Equal.sym(List<&1, Array<F32>>, ffmap(h, dm, List.append(&1, T.FS, l, r)), List.append(&1, Array<F32>, ffmap(h, dm, l), ffmap(h, dm, r)),
            Equal.trans(List<&1, Array<F32>>, ffmap(h, dm, List.append(&1, T.FS, l, r)), ffmap(h, dm, List.append(&1, T.FS, l1y, r)), List.append(&1, Array<F32>, ffmap(h, dm, l), ffmap(h, dm, r)), Equal.cong(List<&1, T.FS>, List<&1, Array<F32>>, z => ffmap(h, dm, List.append(&1, T.FS, z, r)), l, l1y, Equal.sym(List<&1, T.FS>, l1y, l, sl)),
              Equal.trans(List<&1, Array<F32>>, ffmap(h, dm, List.append(&1, T.FS, l1y, r)), List.append(&1, Array<F32>, ffmap(h, dm, l1y), ffmap(h, dm, r)), List.append(&1, Array<F32>, ffmap(h, dm, l), ffmap(h, dm, r)), fa, Equal.cong(List<&1, T.FS>, List<&1, Array<F32>>, z => List.append(&1, Array<F32>, ffmap(h, dm, z), ffmap(h, dm, r)), l1y, l, sl)))))}

Uses (16):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.cong
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.sym
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Equal.trans
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=F32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/PROOF.bend&name=MARF
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/PROOF.bend&name=MRF
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/PROOF.bend&name=app2
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/PROOF.bend&name=ffmap
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/main.bend&name=Dm
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/main.bend&name=FS
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/main.bend&name=Halves
  https://jend.leeeet.dev/definition.txt?path=bendtorch@1.3.0.0/main.bend&name=fleaf_full