Quote: can not define numbers as belonging to a concept; e.g., is Caesar a number? What is the object 0?

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It is tempting to define 0 by saying … seems to amount to replacing 0 by "no", … concept, if the proposition that a does not … number 1 belongs to a concept F, if … be, and if the propositions "a falls under … [Then we could define the number n+1 belonging to a concept from the number n] … [P56, But] strictly speaking we do not know the … we can never--to take a crude example--decide by … whether that same familiar conqueror of Gaul is … in reality we have only fixed the sense … no authority to pick out the 0 and …   Google-1   Google-2

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Topic: what is a number (55 items)