ONT Re: Hermeneutic Equivalence Classes
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HEC. Note 13
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| Leibniz, "Elements of a Calculus" (cont.)
|
| 18. But in the particular affirmative proposition it is not necessary that
| the predicate should be in the subject regarded in itself and absolutely;
| i.e. that the concept of the subject should in itself contain the concept
| of the predicate; it is enough that the predicate should be contained in
| some species of the subject, i.e. that 'the concept of some instance or
| species of the subject should contain the concept of the predicate',
| even though it is not stated expressly what the species is.
|
| Consequently, if you say, "Some experienced man is prudent", it is
| not said that the concept of the prudent man is contained in the
| concept of the experienced man regarded in itself. Nor, again,
| is this denied; it is enough for our purpose that some species
| of experienced man has a concept which contains the concept of
| the prudent man, even though it is not stated expressly just
| what that species is. For even if it is not said expressly
| here that the experienced man is a prudent man who also has
| natural judgement, it is enough that it is understood that
| some species of experienced man involves prudence.
|
| Leibniz, 'Logical Papers', p. 23.
|
| Leibniz, G.W., "Elements of a Calculus" (April, 1679),
| G.H.R. Parkinson (ed.), 'Leibniz: Logical Papers', pp. 17-24,
| Oxford University Press, London, UK, 1966. (Couturat, 49-57).
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