This is a bit like trying to argue that there are no snakes in the wild in Ireland.
This is a long held belief, but you would have to look under every stone and in every bit of undergrowth to be absolutely certain.
You would also have to be looking in all the possible places a snake could live at the same time in case it was moving around.
Any rational person would agree that you can't prove without doubt that there are no snakes in Ireland.
Therefore, you can't prove that there is no God.
Furthermore, because God is spirit its much more difficult to find God than a snake.
You need to have spiritual antennae to detect spiritual things just like you need a radio to detect radio signals even though they are around us all the time.
Its not possible to prove the non existence of God unless you can explore the spiritual realm fully.
