Proof: I am God

Premise, just for this sub-argument: “If A is true, I am God”. This is called premise A.
Suppose that A is true:
   If A is true, I am God
   So, I am God (still supposing A)
Main Argument:
We’ve shown that IF A is true then I am God
But that’s what A says
So therefore A is true
So I am God.

However, I’ll tell you now that I am not God.

This is known as “Curry’s Paradox”, more about which can be found here; the above, more simple, wording is here