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Ideas for 'Topics', 'Metaphysics' and 'Letters to Schlick'

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27 ideas

2. Reason / D. Definition / 1. Definitions
There can't be one definition of two things, or two definitions of the same thing [Aristotle]
Definitions are easily destroyed, since they can contain very many assertions [Aristotle]
The material element may be essential to a definition [Aristotle]
The parts of a definition are isomorphic to the parts of the entity [Aristotle]
If we define 'man' as 'two-footed animal', why does that make man a unity? [Aristotle]
2. Reason / D. Definition / 3. Types of Definition
You can't define particulars, because accounts have to be generalised [Aristotle]
2. Reason / D. Definition / 4. Real Definition
A definition must be of something primary [Aristotle]
Only substance [ousias] admits of definition [Aristotle]
Sometimes parts must be mentioned in definitions of essence, and sometimes not [Aristotle]
Definitions need the complex features of form, and don't need to mention the category [Aristotle, by Wedin]
2. Reason / D. Definition / 5. Genus and Differentia
The differentia indicate the qualities, but not the essence [Aristotle]
The genera and the differentiae are part of the essence [Aristotle]
'Plane' is the genus of plane figures, and 'solid' of solids, with differentiae picking out types of corner [Aristotle]
Whiteness can only belong to man because an individual like Callias happens to be white [Aristotle]
A definition is of the universal and of the kind [Aristotle]
Definition by division is into genus and differentiae [Aristotle]
If the genus is just its constitutive forms (or matter), then the definition is the account of the differentiae [Aristotle]
If I define you, I have to use terms which are all true of other things too [Aristotle]
Species and genera are largely irrelevant in 'Metaphysics' [Aristotle, by Wedin]
Aristotle's definitions are not unique, but apply to a range of individuals [Aristotle, by Witt]
We describe the essence of a particular thing by means of its differentiae [Aristotle]
In definitions the first term to be assigned ought to be the genus [Aristotle]
Differentia are generic, and belong with genus [Aristotle]
'Genus' is part of the essence shared among several things [Aristotle]
2. Reason / D. Definition / 6. Definition by Essence
The definition is peculiar to one thing, not common to many [Aristotle]
Essence is not all the necessary properties, since these extend beyond the definition [Aristotle, by Witt]
A definition is an account of a what-it-was-to-be-that-thing [Aristotle]