Logic.not_true: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/proofs/lib/logic.bend as Logic
Lines 37-42 of bend-collections-laws-math@1.0.0.0/proofs/lib/logic.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/proofs/lib/logic.bend&start_line=37&end_line=42

import Base

def not_true(b: Bool, e: {Bool.not(b) == True{} : Bool}) -> {b == False{} : Bool}:
  match b:
    case False{}:
      {==}
    case True{}:
      Empty.absurd({True{} == False{} : Bool}, false_true(e))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Empty.absurd
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/proofs/lib/logic.bend&name=false_true