That there can be multiple definitions held by multiple people is obvious. Arguing over the definitions as a method to discover some kind of larger truth is a waste of time.
“Arguing over the definitions as a method to discover some kind of larger truth is a waste of time.”
I agree. It’s why I have not addressed the definition—because every knows what it is. The debate here is really about objective certainty, not over the meaning of the word proof.
Hank