In a message dated 9/21/2004 8:08:18 PM Eastern Standard Time, andreas@xxxxxxxxxxx writes: A number is a quantity, for example: X. If you have 2 X (written out as XX), then it's just two of the X. The concept of XX includes the concept of one X and one X. The concept of one X includes the possiblity of multiple X. ----- Okay. Let's take apples One apple. I have the concept of 'one' (adjective) and the concept of 'apple' (noun). This does not always work ("one sugar" makes little sense, or "one water"). If we say "two apples", I need to have the concept of "apple" and the concept of "two" -- I don't think I need to have the concept of "one". It may be a 'form of life' -- to use Wittgenstein's term -- where things only _come in pairs_. Actually a lot of our concepts work like that. At a seminar in linguistics attended by many including L. Horn, they discussed the implicatures of "My ball itches". The sentence was dubbed 'ungrammatical' by many in that it's never specified which (of the two balls) actually itches. (Some proposed that the utterer is mono-testicular, to bestow the sentence with an otherwise dubious grammaticality). Quine, in _Methods of Logic_, comments on the highly complex logical form of something like, "The twelve apostles ate bread". For Quine, "twelve" works like "some" and "all" (and "many"), as a quantifier. He held that there is a iota-quantifier, "the apostle", (1x), and a binary quantifier (2x), etc. He considered that these were really higher-order quantificational operators. George Boolos has developed some of Quine's views -- in his posthumous _Logic, Logic, and Logic_ --, where again, the idea of number is given some sort of 'truth-functional' approach _vis a vis_ Frege's ramblings on the issue (as tr. by J. L. Austin -- R. Henninge knows about that). I believe Kant was one of the first to approach the issues involved, and he certainly said that the concept of 12 is included in the concept of 5 and in the concept of 7 _and_ in the concept of addition. So it's not just that 7 and 5 make 12. It's a special 'and' ("7 and 5 make 2" if 'and' gets interpreted as 'minus' there). Cheers, JL ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html