Were I making erroneous arguments I would doubtlessly move smoothly between them. As it is, I must content myself with moving smoothly between valid arguments in contrast to your jerky and inconsistent movements between faulty arguments.
But, I'll give you the benefit of the doubt this time.
-No video of BHO saying that exists. The video of the debate doesn't support that it was ever said.
No video of the Gettysburg address exists. The lack of video is not proof that it didn't happen. You might be right, but this is not proof.
-The transcripts of the debates do not include that line, but one transcript includes a very similar line leading to the strong suspicion that this line is simply being misrepresented.
That increases plausibility for your argument, however the articles I have found regarding this issue indicate that the comment was not said during the moderated portion of the debate.
-Keyes has never claimed that BHO made such a statement, even during his effort at pursuing legal action.
The lack of a claim is not a denial. If Keyes says it didn't happen, I'll regard that as proof. I will try to get a response from his office today.
Any other three year old, easily debunked birther myths you want to discuss?
No, just a precept of logic. It's really HARD to prove a negative. Some would even say it's impossible. (argumentum ad ignorantiam) Look it up. :)
All in All I would have expected a better standard of proof to arrive at your level of "CERTAINTY."
You’re a silly person.
Then you can be certain too.