He thinks Joe Biden was actually elected!
He doesn't recognize philosophy. He doesn't understand what 'reality' even means or why it's defined that way.
At least you accept the proof of identity (?A -> A)... I suppose that's a start...
?A->A is not the proof of identity (which isn't a proof, it's an axiom). That axiom states: A->A. There is no 'if'.
This expression describes a circular argument, or an argument of faith.
An example of identity is 'Red is a color' (A), therefore 'Red is a color' (->A).
An example of a circular argument is a bit different, but very similar. It can two related forms: direct and indirect.
The direct form might take the form: If Jesus Christ is who He says He is, namely the Son of God (?A) then Jesus Christ is the Son of God (->A). This is the initial circular argument, or argument of faith of Christianity.
The indirect form references a 2nd argument: If the Bible is True (?A), then Jesus Christ is the Son of God for the Bible is True and it says so (->A&B).
Both forms are circular arguments, which is also an argument of faith. Both are valid expressions.
This is the classic Marxist 'we'. Flash falls into this mistake from time to time because he doesn't do his homework properly.
Evidence has already been provided to you years ago. You've denied it. That's your issue.
I even recently provided much of this evidence again just a few days ago. He is simply making an argument of the Stone, a fallacy. As a result, he keeps asking the same inane question over and over even though it's already been answered. Quite mindless.
Worse, he fixates on some unrelated piece of 'evidence' that someone claimed that isn't even evidence, and uses that to try to disprove or deny all evidence (a compositional error fallacy, triggered by cherry picking). It's an attempted proof by Stone, a fallacy.