Activity for PSTH‭

Type	On...	Excerpt	Status	Date
Edit	Post #279044	Initial revision	—	about 4 years ago
Question	—	Why does “unless” mean “if not”? Harry Gensler. Introduction to Logic (2017 3 ed). p 169. >“Unless” is also equivalent to “if not”; so we also could use “$({\sim}B \supset D)$ (“If you don’t breathe, then you’ll die”).” Nicholas JJ Smith, Logic: The Laws of Truth (2012). p 115. >The statement “P unless Q” means that if ... (more)	—	about 4 years ago