Combining Texts

Ideas for 'The Statesman', 'How to Define Theoretical Terms' and 'Set Theory'

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3 ideas

2. Reason / D. Definition / 2. Aims of Definition
To reveal a nature, divide down, and strip away what it has in common with other things [Plato]
     Full Idea: Let's take the kind posited and cut it in two, .then follow the righthand part of what we've cut, and hold onto things that the sophist is associated with until we strip away everything he has in common with other things, then display his peculiar nature.
     From: Plato (The Statesman [c.356 BCE], 264e)
     A reaction: This seems to be close to Aristotle's account of definition, when he is trying to get at what-it-is-to-be some thing. But if you strip away everything the definiendum has in common with other things, will anything remain?
No one wants to define 'weaving' just for the sake of weaving [Plato]
     Full Idea: I don't suppose that anyone with any sense would want to hunt down the definition of 'weaving' for the sake of weaving itself.
     From: Plato (The Statesman [c.356 BCE], 285d)
     A reaction: The point seems to be that the definition brings out the connections between weaving and other activities and objects, thus enlarging our understanding.
Defining terms either enables elimination, or shows that they don't require elimination [Lewis]
     Full Idea: To define theoretical terms might be to show how to do without them, but it is better to say that it shows there is no good reason to want to do without them.
     From: David Lewis (How to Define Theoretical Terms [1970], Intro)