Symbolic logic is no more a subset of Mathematics than it is a subset of Philosophy. Symbolic logic is a discipline unto itself. There are several different symbolic logics, most convertible one to the other.

And, symbolic logic is not the sole necessity to be a good programmer, but more on that in the main thread.

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We are the carpenters and bricklayers of the Information Age.

The idea is a little like C++ templates, except not quite so brain-meltingly complicated. -- TheDamian, Exegesis 6

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.