Logic, Smlogic.

OK, I know what logic is. But this @$&*#@ textbook has taken a simple concept and muddied up the waters beyond all belief. Hopefully Joel will illuminate this subject today. Certainly, what is logical is true, right? Wrong. And you can take modus ponens and modus tollens and stick it. Please. I have read this stuff twice, and still get all balled up. Who would have thought that a course about thinking would be so murky? I've been thinking for a really long time. You would think I would have it down by now. Like I need an algebraic formula to know what is true or not? Or a Venn diagram? All men are human. All women are human. Therefore, all men are women. Right.