OK is Wolfram better? https://mathworld.wolfram.com/Validity.htmlDon't drag me into your wikipedia logic drivel, please.
So you don't agree that it is impossible to derive a false statement from a true statement. Fair enough. Logicians would disagree.Does that help?
OK when I said 'the statement above' I was referring to the following statement:You're very imprecise in your statements for an alleged logician. I wrote a statement of fact. It can't be false.