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[[Rene Descartes|René Descartes]] defines '''extension''' as the property of existing in more than one dimension. |
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* [[extension (metaphysics)]] |
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Or in layman's terms, the property of "taking up space". |
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* [[extension (semantics)]] |
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For Descartes, the primary characteristic of matter is extension, just as the primary characteristic of [[mind]] is [[consciousness]] |
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* [[field extension]] |
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Another common philosophical definition of extension is that the ''extension' of a word, phrase, or concept is the set of things it extends to, or applies to. So the extension of the word 'dog' includes all the dogs in the world: Fido, Rover, Lassie, Rex, and so on. The extension of the phrase 'Wikipedia readers' includes each person who has ever read Wikipedia, including the person reading these words right now. |
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'Extension' is one of the meanings of '[[meaning]]'. It is widely argued that the meaning of a word is sometimes just the things that the word picks out, or applies to. |
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For a different meaning of '''extension''', see [[Field extension]]. |
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