Deep Blue Marine (DPBE)

[keda]

Some negatives can be proven. Especially those that can be shown to be contradictory.

For example, I presume if you so desired, you could prove that you are NOT Wilf Blum (or that Tiger Woods is NOT Wilf Bloom).

Unless you want to get philosophical about questioning validity of proof and evidence. But then, if you want to go down that road, you can't really prove a possitive, either.