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Function and relations: Is it possible to have a function w/

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Tooter
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Function and relations: Is it possible to have a function w/

Postby Tooter » Sun Feb 22, 2009 10:26 pm

Is it possible to have a function without a relation? I think the answer is no but I'd like some confirmation or correction! thanks
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stapel_eliz
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Postby stapel_eliz » Sun Feb 22, 2009 10:29 pm

Tooter wrote:Is it possible to have a function without a relation? I think the answer is no but I'd like some confirmation or correction! thanks

Your instinct is correct! :wink:

For a complete explanation, try this lesson on functions. But the short answer is that any pairing of information is a relation, but only certain "well behaved" relations are actually functions. Functions are a sub-category of relations.

All functions are relations, but many relations are not functions! :D
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