Logic

Dialetheist: "Some contradictions are true." My question: "Who claims (if any), that some tautologies are false?"

Comments

A dialethist would also make this claim. If p is a true contracdition, then it is both true and false. Hence it's negation is both true and false, but it's negation is a tautology.

In colloquial speech there are some apparent tautologies that are used to make a substantive point that can be disputed. There is the famous Yogi Berra saying "it's not over till it's over" used to make the (disputable) claim that the team behind can still catch up. And there is "boys are boys" expressing the (very disputable) claim that its pointless to work toward decent behavior by men in matters sexual.

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