PROOF.h.tf: def of bend-kit-collections@0.1.4.1
Import: import bend-kit-collections@0.1.4.1/PROOF.bend as PROOF
Lines 1733-1734 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=1733&end_line=1734

import Base
import bend-mathlib@0.7.4.0/bool.bend as MBool

def h.tf(-A: Type, -b: Bool, et: {b == True{} : Bool}, ef: {b == False{} : Bool}) -> A:
  Empty.absurd(A, MBool.false_ne_true()(Equal.trans(Bool, False{}, b, True{}, Equal.sym(Bool, b, False{}, ef), et)))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Empty.absurd
  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=bend-mathlib@0.8.1.0/bool.bend&name=false_ne_true