 | I. P. Hughlings - 1869 - 112 páginas
...Mr. Jevoim, in enforcing this objection, remarks that Professor Boole's symbols, in expressing this proposition, " A peer is either a duke, or a marquis, or an earl, or a viscount, or a baron," would necessarily imply that a peer can not be at once a duke and marquis, or marquis and earl. The... | |
 | I P. Hughlings - 1869 - 112 páginas
...Mr. Jevons, in enforcing this objection, remarks that Professor Boole's symbols, in expressing this proposition, " A peer is either a duke, or a marquis, or an earl, or a viscount, or a baron," would necessarily imply that a peer can not be at once a duke and marquis, or marquis and earl. The... | |
 | William Stanley Jevons - 1874 - 978 páginas
...defective it will often be impossible to decide whether terms joined by conjunctions are exclusive or not. Take, for instance, the proposition 'A peer is either...baron.' If expressed in Professor Boole's symbols, it would be implied that a peer cannot be at once a duke and marquis, or marquis and earl. Yet many... | |
 | John Neville Keynes - 1884 - 436 páginas
...one another ? A very few instances will I think enable us to answer this question in the negative. "Take, for instance, the proposition — 'A peer is...a marquis, or an earl, or a viscount, or a baron'. ..Yet many peers do possess two or more titles, and the Prince of Wales is Duke of Cornwall, Earl of... | |
 | John Neville Keynes - 1887 - 480 páginas
...members of more than one of these Universities ? Jevons (Pure Logie, pp. 76, 77) instances the following proposition, — " A peer is either a duke, or a marquis, or an earl, or a viscount, or a baron." We do not consider this statement incorrect because many peers as a matter of fact possess two or more... | |
 | William Stanley Jevons - 1890 - 346 páginas
...objects, imply that those classes are quite distinct, so that no member of one is found in another.' 178. This I altogether dispute. In the ordinary use...baron.' If expressed in Professor Boole's symbols, it would be implied that a peer cannot be at once a duke and marquis, or marquis and earl. Yet many... | |
 | Emily Elizabeth Constance Jones - 1890 - 234 páginas
...the P-name of 0 ; eg, If any goose is not grey, it is white. If any peer is not a duke, he must be a marquis, or an earl, or a viscount, or a baron. If any Briton is not English, Welsh, or Irish, he is Scotch. These correspond to, and are derivable from,... | |
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A peer is either a duke, or a marquis, or an earl, or a viscount, or a baron.' If expressed in Professor Boole's symbols, it would be implied that a peer cannot be at once a duke and marquis, or marquis and earl. Yet many peers do possess two or more... 