Tuesday, November 27, 2007

6.1232 One could call logical general validity essential, in contrast to accidental general validity, for instance of the proposition “All men are mortal.” Propositions like Russell’s “axiom of reducibility” are not logical propositions, and this explains our feeling that, if true, they could be true only by a propitious accident.

So Russell imports alleged facts into logic. Tut tut.

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