“ No man is immortal, is also a universal proposition, since the predicate, immortal, is denied of each and every individual denoted by the term man; the negative proposition being exactly equivalent to the following, Every man is not-immortal. But “some men are wise,” “some men are not wise,” are particular propositions ”
John Stuart Mill, A System Of Logic, Ratiocinative And Inductive (1843). copy citation
| Author | John Stuart Mill |
|---|---|
| Source | A System Of Logic, Ratiocinative And Inductive |
| Topic | proposition long-term |
| Date | 1843 |
| Language | English |
| Reference | |
| Note | |
| Weblink | http://www.gutenberg.org/files/27942/27942-h/27942-h.html |
Context
“When the predicate is affirmed or denied of all and each of the things denoted by the subject, the proposition is universal; when of some undefined portion of them only, it is particular. Thus, All men are mortal; Every man is mortal; are universal propositions. No man is immortal, is also a universal proposition, since the predicate, immortal, is denied of each and every individual denoted by the term man; the negative proposition being exactly equivalent to the following, Every man is not-immortal. But “some men are wise,” “some men are not wise,” are particular propositions; the predicate wise being in the one case affirmed and in the other denied not of each and every individual denoted by the term man, but only of each and every one of some portion of those individuals, without specifying what portion;”
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