As P. Stone says, "Children should not learn to be Aristotelian. Aristotelian logic is flawed on a number of fronts. The fact that premises lead to conclusion regardless is surely a basic drawback of Western Logic as from Aristotle onwards." In a message dated 1/11/2010 1:00:20 P.M. Eastern Standard Time, pastone@xxxxxxxxx writes: Matthew: daddy, the cat is purring Dad: Yes, do you know why? Matthew: Because he's a cat. --- but where's the middle term. Shouldn't the answer be: "Because he is a purrer". Today I went to buy a watering can. It turned out to be made of can, but I asked my friend. Would you still call it a watering can if made of plastic? He said, Yes. "I wouldn't," I said. "What about 'waterer'. It's safest to go by attributes (purrings) rather than substances (cats). For Aristotle the syllogism's middle term can be either semeion or meikerion. And it's always apodeictic apodeixis, i.e. necessary proof. Note that it's the first FIGURE of the sillygism, not the first sillygism proper Cheers, J. L. Speranza ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html