There have been several questions here about good and evil and about God/gods, some of which I might more intuitively classify as theological rather than philosophical questions. However, many great philosophers, including Plato, have discussed such matters. Are these cases of philosophers discussing theological questions (much as physicists discuss mathematical questions), or are theological questions a subset of philosophical questions? Logically, assuming nothing, I can divide the sets of questions into four:
- Questions that are theological and philosophical
- Questions that are theological, but not philosophical
- Questions that are philosophical, but not theological
- Questions that are neither theological nor philosophical
Obviously there are questions that fall into sets 3 and 4, and obviously there are questions that fall into either 1 or 2. So, another phrasing of my question would be, is set #1 empty, and if not, what are some examples? Is set #2 empty, and if not, what are some examples. I expect that the answer will be that different philosophers might disagree on this, with some making set #1 empty, others making set #2 empty, and some making neither empty, but my knowledge of philosophy is amateur, having taken only a single college course in it, decades ago.