The Search for Mathematical Roots, 1870-1940 by Grattan-Guinness I.; Grattan-Guinness I.;

Author:Grattan-Guinness, I.; Grattan-Guinness, I.;
Language: eng
Format: epub
Publisher: Princeton University Press

7.3.5 Denoting, quantification and the mysteries of existence. Russell’s account above to Jourdain involves a rather muddling aspect of his logic, which becomes noticeable from 1905 onwards: his multiple uses of the word ‘existence’, and the symbols that went with them (my 1977b, 71–74). There were two senses for individuals (‘I’ in Table 735.1), and three for classes (‘C’):

On individuals, the two senses do not necessarily interact; for example, the present King of England would not have been ignominiously placed at the bottom level in the type theory of PM. However, proved there is

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