Bool.not: def of Base
Import: import Base
Lines 568-573 of Base/base.bend: https://jend.leeeet.dev/read.txt?path=Base/base.bend&start_line=568&end_line=573

import Base

def Bool.not(b: Bool) -> Bool:
  match b:
    case False{}:
      True{}
    case True{}:
      False{}

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