(February 16, 2010 at 4:15 pm)Purple Rabbit Wrote:(February 16, 2010 at 4:13 pm)Darwinian Wrote: The law of identity, A = AAnd your proof?
The law of contradiction, A cannot be both A and not A
The law of the excluded middle, A must be either A or not A
Proof? How can you ask that? This is at the root of logic. Should be easy.