▲ 40 ▼ Is "If A then B" equal to "B if and only if A"? (lemmy.world) submitted 2 years ago by Lafari@lemmy.world to c/nostupidquestions@lemmy.world 60 comments fedilink hide all child comments
[–] Moobythegoldensock@lemm.ee 7 points 2 years ago* (1 child) “If X is cat, then X is mammal” =?> “X is mammal if and only if X is cat” Obviously doesn’t hold: What if X doge? permalink fedilink source hideshow 2 child comments replies: [–] umulu@lemmy.world 0 points 2 years ago Great analogy! permalink fedilink source parent