Dr.Mindbender
King
Well it is not complex. (P & P) alone can evaluate to P. This is logically contingent ¬(p & p) to a tautology as long as we can assume that the same two propositional variables are either true and true or false and false.(P & P) evaluates to P. Are you claiming that ¬P is a tautology?
They are both the same as well as devoid of contents that each are repetition of the information provided.