1. Since this requires that speakers be informative, the asserting of tautologies blatantly violates it.

2. 6 Since this requires that speakers be informative, the asserting of tautologies blatantly violates it.

3. 5 The uttering of simple and obvious tautologies should, in principle, have absolutely no communicative import.

4. In Against the Academicians (386) he claimed that, if nothing else, humans know disjunctive tautologies such as “Either there is one world or there is not one world” and “Either the world is finite or it is infinite.” Humans also know …