The well-known theorem of Tarski that truth of sentences in any reasonably expressive language L cannot be defined in the language L itself is proved by a diagonalization argument similar to the argument involved in Russell's paradox. […] It is usual to think that Russell's paradox excludes large sets like the universe, but this is actually not the case. An alternate solution to Russell's paradox (and other paradoxes) was proposed by Quine (1937) in his system New Foundations (NF): comprehension restricted to stratified formulae.

I think it is overstating matters to say that an hour online is spending all night on the computer.

We have already at different times tried to deserve well of the world by remonstrating against the errors of petticoatery, and against certain freakish “sports” in the rosebud garden of girls.

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