Sextus Empiricus Pyrrhoniae Hypotyposes 2.17.213

[213] Inasmuch as some of the Dogmatists ¹ affirm that ‟Dialectic” is ‟a science dealing with syllogism, induction, definition and division,” and, after our arguments concerning the criterion and the sign and proof, we have already discussed syllogisms and induction as well as definitions, we deem that it will not be amiss to treat shortly of ‟division” also. Division then, as they allege, is effected in four ways: either a name, or word, is divided into its significations, or a whole into parts, or a genus into species, or a species into particulars. But it is probably easy to show that, on the contrary, in respect of none of these does a divisive science exist.