I was speaking about logically true, not true in reality.<quoted text>
Just to clarify: lack of evidence doesn't demonstrate the untruth of the claim; it merely justifies rejection of the claim.
"I have a million dollars in my pocket." If I provide no evidence, does that make my claim false? Of course not. It very well might be true (assuming that I have extremely large pockets, or a check). But, if I make a claim that is out of the ordinary, and provide zero evidence to support it, you have no rational justification to accept my claim as true, so you reject my claim. It could still be true, but you would be right not to accept it.
Or, an Atheist Experience example: a jar is filled with jellybeans. The number of jellybeans is either even or odd. I claim that the number is even. I have no evidence to support my claim. I may be right, but I haven't provided you a rational reason to accept it, so you rightly reject it.
Don't conflate rejecting a claim with the claim being untrue. Not the same thing.
An argument based on an unproved premise is a logical fallacy - begging the question, as I'm sure you know.
In the case of the existence of God, however, we can easily dismantle every argument ever put forward for his existence simply by examining the definition of "God."
In every instance, the way believers define God it ends up as a five-sided square.
If I side I could draw a five-sided square but failed to prove it, is that an unproved claim or a false claim? Of course it is false, since by definition a square must have four equal sides.
Whenever a believer tells me that their God knows the future AND that their God granted them free will, it's very easy to prove that that particular God cannot exist.
When a believer claims that their God is always just yet sometimes merciful, it's very easy again to prove that that particular God cannot exist.
The God of the Deists is probably the toughest one to disprove, since the only act attributed to that God is the creation of the cosmos. The God of the Deists doesn't have a personality or an agenda, and as no claims are made about that God there is nothing to prove or disprove.
The Christian God is another story entirely, and it is that God which I will continue to debunk as a myth in these forums.