[1]: Ibycus fragm. Bergk.
[2]: i.e. if non-existence cannot be predicated either of the one (unitas) or of that (illuditas), but that of which we predicate non-existence is something else, then we may as well stop talking. It has just been affirmed that if that one of which we are speaking, and not something else, is not, then the one must partake of numerous attributes. Now it is affirmed that if the converse is true, further discussion is futile.
[3]: i.e. if it ceases to be non-existent, gives up something of being (as applied to non-existence) to not-being, so that it no longer is non-existent, but is not non-existent.