| 1. No, it isn't. I am uncertain if my theory is true or not. My theory is either true or false. It's not both. That is a very, very big difference.
2. Once again, you seem to have conflated knowledge of X with fact of X They are quite different things. I may know that my shirt is blue. If my shirt is in-fact blue, then that knowledge is 'true'. If my shirt is, in fact, red, then that knowledge is 'false'. If I cannot prove that my shirt is blue (or red), then I don't know if the knowledge is true or false. But it is one or the other, irrespective of whether I am aware of it.
3. No evidence has been presented: this is all argument. |