[codingdave]

I sit here, pondering whether that type of logic is math or philosophy. Most likely, it is the intersection of the two. Of course, spending even a few minutes pondering such things tells me that I personally need to avoid the math and embrace the philosophy.

[dkarl]

Philosophy includes the study of mathematical reasoning, but you don't get practice at it while you're studying it. It's like taking a music theory class versus learning to play an instrument.

[codingdave]

Hm. When I was studying philosophy, we did have logic classes, and did diagram out the logic of arguments. It was a critical component for success in later courses, so I'd say we absolutely practiced it.

[rockercoaster]

I own a modal logic textbook used by a course in a philosophy department, and on any given page it looks an awful lot like a math textbook except that the presentation is far friendlier and the explanations are better than are in 99% of math books.

It contains lots and lots of exercises.