Some of the Stoics considered [Greek: to\ nu=n] as [Greek: mêde/n]--and nothing in time to be real except [Greek: to\ parô|chêko\s] and [Greek: to\ me/llon] (Plutarch, De Commun. Notitiis contra Stoicos, p. 1081 D).] [Side-note: Review of the successive pairs of Demonstrations or Antinomies in each, the first proves the Neither, the second proves the Both.] The theory here laid down in the third Demonstration respecting this extra-temporal point--the _Suddenly_--deserves all the more attention, because it applies not merely to the first and second Demonstration which precede it, but also to the fourth and fifth, the sixth and seventh, the eighth and ninth, which follow it. I have already observed, that the first and second Demonstration form a corresponding pair, branching off from the same root or hypothetical proposition (at least the same in terms), respecting the subject _Unum_; and destined to prove, one the Neither, the other the Both, of several different predicates. So also the fourth and fifth form a pair applying to the subject Cætera; and destined to prove, that from the same hypothetical root--_Si Unum est_--we can deduce the Neither as well as the Both, of various predicates of Cætera. When we pass on to the four last Demonstrations, we find that in all four, the hypothesis _Si Unum non est_ is substituted for that of _Si Unum est_: but the parallel couples, with the corresponding purpose, are still kept up. The sixth and seventh apply to the subject _Unum_, and demonstrate respecting that subject (proceeding from the hypothesis _Si Unum non est_) first the _Both_, then the _Neither_, of various predicates: the eighth and ninth arrive at the same result, respecting the subject _Cætera_. And a sentence at the close sums up in few words the result of all the four pairs (1-2, 4-5, 6-7, 8-9, that is, of all the Demonstrations excepting the third)--the Neither and the Both respecting all of them. [Side-note: The third Demonstration is mediatorial but not satisfactory--The hypothesis of the Sudden or Instantaneous found no favour.]