In my philosophical theology seminar this week, my professor had us engage in an old-fashioned, medieval style
disputatio. My team was tasked with defending the idea that
there could be no more than one omnipotent being, and we had a mere ten minutes to prepare. This is actually a fairly important question, as any case for traditional monotheism needs to be able to show that any being who possesses the properties that we usually assign to God (omnipotence, omniscience, omnibenevolence, etc.) could have no extant rivals. In other words, traditional monotheism needs to show not only that God (traditionally defined) exists but that
only one God exists.