Perm.internal_merge_pick: def of bend-mathlib@0.8.1.0
Import: import bend-mathlib@0.8.1.0/perm.bend as Perm
Lines 140-145 of bend-mathlib@0.8.1.0/perm.bend: https://jend.leeeet.dev/read.txt?path=bend-mathlib@0.8.1.0/perm.bend&start_line=140&end_line=145

import Base
import bendlib-kernel-list@1.0.0.0/list.bend as K

def internal_merge_pick(-A: Data, b: Bool, +x: A, +xt: List<&2, A>, +y: A, +yt: List<&2, A>, -m1: List<&2, A>, -m2: List<&2, A>, ih1: K.perm(A, List.append(&2, A, xt, y <> yt), m1), ih2: K.perm(A, x <> List.append(&2, A, xt, yt), m2)) -> K.perm(A, x <> List.append(&2, A, xt, y <> yt), Bool.pick(List<&2, A>, b, x <> m1, y <> m2)):
  match b:
    case True{}:
      perm_cons(A, x, List.append(&2, A, xt, y <> yt), m1, ih1)
    case False{}:
      perm_trans(A, x <> List.append(&2, A, xt, y <> yt), y <> x <> List.append(&2, A, xt, yt), y <> m2, perm_move(A, x <> xt, y, yt), perm_cons(A, y, x <> List.append(&2, A, xt, yt), m2, ih2))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  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=bend-mathlib@0.8.1.0/perm.bend&name=perm_cons
  https://jend.leeeet.dev/definition.txt?path=bend-mathlib@0.8.1.0/perm.bend&name=perm_move
  https://jend.leeeet.dev/definition.txt?path=bend-mathlib@0.8.1.0/perm.bend&name=perm_trans
  https://jend.leeeet.dev/definition.txt?path=bendlib-kernel-list@1.0.0.0/list.bend&name=perm