AC and the subset axiom

AC may be incorporated into the subset axiom. The subset axiom says that, assuming the use of "vacuous truth," any set X has a s...

  • Monty Hall II
    A peculiar scenario Behind three doors are two booby prizes and a luxury car. You are asked to select a door and, after reflection,...
  • Caution: Tractatus commentary
    is in very, very rough form
    It is nowhere near ready for dissemination. But, I believe in permitting anyone who likes to look over my shoulder and see what I am doing w...
  • Tractatus 5
    When you see X ⊃ Y, you are to read "X implies Y" or "If X, then Y." Sometimes you may see the modern form, X —> Y, i...