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3 ideas
14465 | Maybe numbers are adjectives, since 'ten men' grammatically resembles 'white men' [Russell] |
Full Idea: 'Ten men' is grammatically the same form as 'white men', so that 10 might be thought to be an adjective qualifying 'men'. | |
From: Bertrand Russell (Introduction to Mathematical Philosophy [1919], XVIII) | |
A reaction: The immediate problem, as Frege spotted, is that such expressions can be rephrased to remove the adjective (by saying 'the number of men is ten'). |
13414 | For Russell, numbers are sets of equivalent sets [Russell, by Benacerraf] |
Full Idea: Russell's own stand was that numbers are really only sets of equivalent sets. | |
From: report of Bertrand Russell (Introduction to Mathematical Philosophy [1919]) by Paul Benacerraf - Logicism, Some Considerations (PhD) p.168 | |
A reaction: Benacerraf is launching a nice attack on this view, based on our inability to grasp huge numbers on this basis, or to see their natural order. |
14449 | There is always something psychological about inference [Russell] |
Full Idea: There is always unavoidably something psychological about inference. | |
From: Bertrand Russell (Introduction to Mathematical Philosophy [1919], XIV) | |
A reaction: Glad to find Russell saying that. Only pure Fregeans dream of a logic that rises totally above the minds that think it. See Robert Hanna on the subject. |