Util.minus: def of unified-nsga-iii@0.2.2.0
Import: import unified-nsga-iii@0.2.2.0/util.bend as Util
Lines 87-92 of unified-nsga-iii@0.2.2.0/util.bend: https://jend.leeeet.dev/read.txt?path=unified-nsga-iii@0.2.2.0/util.bend&start_line=87&end_line=92

import Base

def minus(+xs: List<&2, Nat>, +ys: List<&2, Nat>) -> List<&2, Nat>:
  match xs:
    case Nil{}:
      Nil{}
    case h <> t:
      minus.put(h, minus(t, ys), in_nats(h, ys))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=in_nats
  https://jend.leeeet.dev/definition.txt?path=unified-nsga-iii@0.2.2.0/util.bend&name=minus.put