PROOF.split: def of bend-kit-collections@0.1.4.1
Import: import bend-kit-collections@0.1.4.1/PROOF.bend as PROOF
Lines 556-566 of bend-kit-collections@0.1.4.1/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-collections@0.1.4.1/PROOF.bend&start_line=556&end_line=566

import Base

def split(
  -P: Cmp -> Type, c: Cmp, hl: {c == LT{} : Cmp} -> P(LT{}),
  he: {c == EQ{} : Cmp} -> P(EQ{}), hg: {c == GT{} : Cmp} -> P(GT{})
) -> P(c):
  match c:
    case LT{}:
      hl({==})
    case EQ{}:
      he({==})
    case GT{}:
      hg({==})

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Cmp