ProofList.jg_fin: law of lawful-fields@0.1.1.0
Import: import lawful-fields@0.1.1.0/proof_list.bend as ProofList
Lines 89-95 of lawful-fields@0.1.1.0/proof_list.bend: https://jend.leeeet.dev/read.txt?path=lawful-fields@0.1.1.0/proof_list.bend&start_line=89&end_line=95

import Base
import lawful-fields@0.1.1.0/defs.bend as F

# join.go of the pieces of split is the separator, then their join.
law jg_fin:
  for +y: U32
  for +r: List<&2, List<&2, U32>>
  for +b: Bool
  for +sep: U32
  {F.join.go(F.split.fin(y, r, b), sep) == sep <> F.join(F.split.fin(y, r, b), sep) : List<&2, U32>}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=lawful-fields@0.1.1.0/defs.bend&name=join
  https://jend.leeeet.dev/definition.txt?path=lawful-fields@0.1.1.0/defs.bend&name=join.go
  https://jend.leeeet.dev/definition.txt?path=lawful-fields@0.1.1.0/defs.bend&name=split.fin