What about the everyday meaning of "proof" and "irrevocable proof" as "strong evidence" and "stronger evidence" respectively? If I saw someone leaving the hous

What about the everyday meaning of "proof" and "irrevocable proof" as "strong evidence" and "stronger evidence" respectively? If I saw someone leaving the house of a woman (not his wife) with lipstick on his face and messed up clothes, I think I'm justified in calling that proof of an affair. It's not "irrevocable proof" though. "Irrevocable proof" would then be actually seeing him in the act. Logically, though, it's not - maybe I was hallucinating? Maybe he has a twin? Etc. - the point is, language is rarely definite in everyday use. I got tripped up on a few of these as well. I said that evolution is correct despite not being fully "proven", yet it was foolish to believe in God without irrevocable proof of his existence. My intent was to say that believing in a God would require a huge amount of proof, not that it could be "proven absolutely", whatever that means. The game decided that I was arguing that God needed to be literally proven in order to prefer the God theory. I don't even know what would constitute "irrevocable proof" in any area bar "I think therefore I am" - and I believe even that has been shown to not necessarily hold! -- Ayjay on Fedang/philosophy