thus in all such particulars; yet it is one of the most difficult things to define this, viz. which of those adduced are, and which are not, such. Wherefore in disputation they oftentimes circumvent each other, some asserting that those which are not similar are similar, but others doubting whether similars are not similars. On this account, in all such cases he (the disputant) must endeavour to assign a name, so that it may neither be possible for the respondent to doubt, as if what is adduced is not similarly stated, nor for the interrogator to find fault, as if it were similarly stated, since many things which are not similarly stated, appear to be so.
When, an induction being made in many things, a person does not grant the universal, then it is fair to demand the objection; he however who does not state in what this occurs, does not justly demand in what it is not so, for he ought, having first made an induction, thus to demand the objection. It must be claimed too, that the objections be not alleged in the thing itself, which is proposed, unless there should be only one such thing, as the dual alone is the first of even numbers, since it is necessary that the objector should bring the objection in something else, or should state that this alone is a thing of such a sort. As to those indeed, who object to the universal, yet do not allege the objection in the same (genus), but in the equivocal, (as that some one may have not his own colour, or foot, or hand, for a painter may have colour, and a cook a foot, not his own,) employing division in such things, the interrogation must be made, since from the equivocation escaping notice, he will appear to object rightly to the proposition. Still if the objector impede the interrogation, by objecting not in the equivocal, but in the same genus, it is necessary by removing that, in which the objection consists, to bring forward the remainder, making it universal, until what is useful is assumed. Thus, in the case of oblivion and of having forgotten, for they do not allow that he who
