Re: The Difference between a Set and an Element

On Thu, 11 Jan 2007 02:57:18 +0000 (UTC), Chris Menzel
<cmenzel@xxxxxxxxxxxxxxxxxxxx> wrote:


You wouldn't disagree with me that mathematical concepts are abstract,
right?

Well, I'm not sure what concepts are exactly, but if there are such
things I would certainly agree they are not concrete.


Gottlob Frege came up with the following assertion:


"A concept is a function whose value is always a truth-value."


F.


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