Authors/Thomas Aquinas/perihermenias/perihermenias I/L11

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LECTURE 11

Latin English
Aquinas lib. 1 l. 11 n. 1 Postquam philosophus determinavit de oppositione enunciationum, comparando universales enunciationes ad indefinitas, hic determinat de oppositione enunciationum comparando universales ad particulares. Circa quod considerandum est quod potest duplex oppositio in his notari: una quidem universalis ad particularem, et hanc primo tangit; alia vero universalis ad universalem, et hanc tangit secundo; ibi: contrariae vero et cetera. 1. Now that he has determined the opposition of enunciations by comparing universal enunciations with indefinite enunciations, Aristotle determines the opposition of enunciations by comparing universals to particulars. It should be noted that there is a twofold opposition in these enunciations, one of universal to particular, and he touches upon this first; the other is the opposition of universal to universal, and this he takes up next, where he says, They are opposed contrarily when the universal affirmation is opposed to the universal negation, etc.
Aquinas lib. 1 l. 11 n. 2 Particularis vero affirmativa et particularis negativa, non habent proprie loquendo oppositionem, quia oppositio attenditur circa idem subiectum; subiectum autem particularis enunciationis est universale particulariter sumptum, non pro aliquo determinato singulari, sed indeterminate pro quocumque; et ideo, cum de universali particulariter sumpto aliquid affirmatur vel negatur, ipse modus enunciandi non habet quod affirmatio et negatio sint de eodem: quod requiritur ad oppositionem affirmationis et negationis, secundum praemissa. 2. The particular affirmative and particular negative do not have opposition properly speaking, because opposition is concerned with the same subject. But the subject of a particular enunciation is the universal taken particularly, not for a determinate singular but indeterminately for any singular. For this reason, when something is affirmed or denied of the universal particularly taken, the mode of enunciating is not such that the affirmation and negation are of the same thing; hence what is required for the opposition of affirmation and negation is lacking.
Aquinas lib. 1 l. 11 n. 3 Dicit ergo primo quod enunciatio, quae universale significat, scilicet universaliter, opponitur contradictorie ei, quae non significat universaliter sed particulariter, si una earum sit affirmativa, altera vero sit negativa (sive universalis sit affirmativa et particularis negativa, sive e converso); ut cum dicitur, omnis homo est albus, non omnis homo est albus: hoc enim quod dico, non omnis, ponitur loco signi particularis negativi; unde aequipollet ei quae est, quidam homo non est albus; sicut et nullus, quod idem significat ac si diceretur, non ullus vel non quidam, est signum universale negativum. Unde hae duae, quidam homo est albus (quae est particularis affirmativa), nullus homo est albus (quae est universalis negativa), sunt contradictoriae. 3. First he says that the enunciation that signifies the universal, i.e., universally, is opposed contradictorily to the one that does not signify universally but particularly, if one of them is affirmative and the other negative (whether the universal is affirmative and the particular negative or conversely), as in "Every man is white,” "Not every man is white.” For, the "not every” is used in place of the particular negative sign; consequently, "Not every man is white” is equivalent to "Some man is not white.” In a parallel way "no,” which signifies the same thing as "not any” or "not some,” is the universal negative sign; consequently, the two enunciations, "Some man is white,” which is the particular affirmative, and "No man is white,” which is the universal negative, are contradictories.
Aquinas lib. 1 l. 11 n. 4 Cuius ratio est quia contradictio consistit in sola remotione affirmationis per negationem; universalis autem affirmativa removetur per solam negationem particularis, nec aliquid aliud ex necessitate ad hoc exigitur; particularis autem affirmativa removeri non potest nisi per universalem negativam, quia iam dictum est quod particularis affirmativa non proprie opponitur particulari negativae. Unde relinquitur quod universali affirmativae contradictorie opponitur particularis negativa, et particulari affirmativae universalis negativa. 4. The reason for this is that contradiction consists in the mere removal of the affirmation by a negation. Now the universal affirmative is removed by merely the negation of the particular and nothing else is required of necessity; but the particular affirmative can only be removed by the universal negative because, as has already been said, the particular negative is not properly opposed to the particular affirmative. Consequently, the particular negative is opposed contradictorily to the universal affirmative and the universal negative to the particular affirmative.
Aquinas lib. 1 l. 11 n. 5 Deinde cum dicit: contrariae vero etc., tangit oppositionem universalium enunciationum; et dicit quod universalis affirmativa et universalis negativa sunt contrariae; sicut, omnis homo est iustus, nullus homo est iustus, quia scilicet universalis negativa non solum removet universalem affirmativam, sed etiam designat extremam distantiam, in quantum negat totum quod affirmatio ponit; et hoc pertinet ad rationem contrarietatis; et ideo particularis affirmativa et negativa se habent sicut medium inter contraria. 5. When he says, They are opposed contrarily when the universal affirmation is opposed to the universal negation, etc., he touches on the opposition of universal enunciations. The universal affirmative and universal negative, he says, are contraries, as in "Every man is just... No man is just”; for the universal negative not only removes the universal affirmative but also designates an extreme of distance between them inasmuch as it denies the whole that the affirmation posits; and this belongs to the notion of contrariety. The particular affirmative and particular negative, for this reason, are related as a mean between contraries.
Aquinas lib. 1 l. 11 n. 6 Deinde cum dicit: quocirca has quidem etc., ostendit quomodo se habeant affirmatio et negatio oppositae ad verum et falsum. Et primo, quantum ad contrarias; secundo, quantum ad contradictorias; ibi: quaecumque igitur contradictiones etc.; tertio, quantum ad ea quae videntur contradictoria, et non sunt; ibi: quaecumque autem in universalibus et cetera. Dicit ergo primo quod quia universalis affirmativa et universalis negativa sunt contrariae, impossibile est quod sint simul verae. Contraria enim mutuo se expellunt. Sed particulares, quae contradictorie opponuntur universalibus contrariis, possunt simul verificari in eodem; sicut, non omnis homo est albus, quae contradictorie opponitur huic, omnis homo est albus, et, quidam homo est albus, quae contradictorie opponitur huic, nullus homo est albus. Et huiusmodi etiam simile invenitur in contrarietate rerum: nam album et nigrum numquam simul esse possunt in eodem, sed remotiones albi et nigri simul possunt esse: potest enim aliquid esse neque album neque nigrum, sicut patet in eo quod est pallidum. Et similiter contrariae enunciationes non possunt simul esse verae, sed earum contradictoriae, a quibus removentur, simul possunt esse verae. 6. He shows how the opposed affirmation and negation are related to truth and falsity when he says, Hence in the case of the latter it is impossible that both be at once true, etc. He shows this first in regard to contraries; secondly, in regard to contradictories, where he says, Whenever there are contradictions with respect to universal signifying universally, etc.; thirdly, in regard to those that seem contradictory but are not, where he says, But when the contradictions are of universals not signifying universally, etc. First, he says that because the universal affirmative and universal negative are contraries, it is impossible for them to be simultaneously true, for contraries mutually remove each other. However, the particular enunciations that are contradictorily opposed to the universal contraries, can be verified at the same time in the same thing, for example, "Not every man is white” (which is opposed contradictorily to "Every man is white”) and "Some man is white” (which is opposed contradictorily to "No man is white”) . A parallel to this is found in the contrariety of things, for white and black can never be in the same thing at the same time; but the remotion of white and black can be in the same thing at the same time, for a thing may be neither white nor black, as is evident in something yellow. In a similar way, contrary enunciations cannot be at once true, but their contradictories, by which they are removed, can be true simultaneously.
Aquinas lib. 1 l. 11 n. 7 Deinde cum dicit: quaecumque igitur contradictiones etc., ostendit qualiter veritas et falsitas se habeant in contradictoriis. Circa quod considerandum est quod, sicut dictum est supra, in contradictoriis negatio non plus facit, nisi quod removet affirmationem. Quod contingit dupliciter. Uno modo, quando est altera earum universalis, altera particularis, ut supra dictum est. Alio modo, quando utraque est singularis: quia tunc negatio ex necessitate refertur ad idem (quod non contingit in particularibus et indefinitis), nec potest se in plus extendere nisi ut removeat affirmationem. Et ideo singularis affirmativa semper contradicit singulari negativae, supposita identitate praedicati et subiecti. Et ideo dicit quod, sive accipiamus contradictionem universalium universaliter, scilicet quantum ad unam earum, sive singularium enunciationum, semper necesse est quod una sit vera et altera falsa. Neque enim contingit esse simul veras aut simul falsas, quia verum nihil aliud est, nisi quando dicitur esse quod est, aut non esse quod non est; falsum autem, quando dicitur esse quod non est, aut non esse quod est, ut patet ex IV metaphysicorum. 7. Then he says, Whenever there are contradictions with respect to universals signifying universally, one must be true and the other false, etc. Here he shows how truth and falsity are related in contradictories. As was said above, in contradictories the negation does no more than remove the affirmation, and this in two ways: in one way when one of them is universal, the other particular; in another way when each is singular. In the case of the singular, the negation is necessarily referred to the same thing—which is not the case in particulars and indefinites—and cannot extend to more than removing the affirmation. Accordingly, the singular affirmative is always contradictory to the singular negative, the identity of subject and predicate being supposed. Aristotle says, therefore, that whether we take the contradiction of universals universally (i.e., one of the universals being taken universally) or the contradiction of singular enunciations, one of them must always be true and the other false. It is not possible for them to be at once true or at once false because to be true is nothing other than to say of what is, that it is, or of what is not that it is not; to be false, to say of what is not, that it is, or of what is, that it is not, as is evident in IV Metaphysicorum [7: 1011b 25].
Aquinas lib. 1 l. 11 n. 8 Deinde cum dicit: quaecumque autem universalium etc., ostendit qualiter se habeant veritas et falsitas in his, quae videntur esse contradictoria, sed non sunt. Et circa hoc tria facit: primo proponit quod intendit; secundo, probat propositum; ibi: si enim turpis non probus etc.; tertio, excludit id quod facere posset dubitationem; ibi: videbitur autem subito inconveniens et cetera. Circa primum considerandum est quod affirmatio et negatio in indefinitis propositionibus videntur contradictorie opponi propter hoc, quod est unum subiectum non determinatum per signum particulare, et ideo videtur affirmatio et negatio esse de eodem. Sed ad hoc removendum philosophus dicit quod quaecumque affirmative et negative dicuntur de universalibus non universaliter sumptis, non semper oportet quod unum sit verum, et aliud sit falsum, sed possunt simul esse vera. Simul enim est verum dicere quod homo est albus, et, homo non est albus, et quod homo est probus, et, homo non est probus. 8. When he says, But when the contradictions are of universals not signifying universally, etc., he shows how truth and falsity are related to enunciations that seem to be contradictory, but are not. First he proposes how they are related; then he proves it where he says, For if he is ugly, he is not beautiful, etc.; finally, he excludes a possible difficulty where he says, At first sight this might seem paradoxical, etc. With respect to the first point we should note that affirmation and negation in indefinite propositions seem to be opposed contradictorily because there is one subject in both of them and it is not determined by a particular sign. Hence, the affirmation and negation seem to be about the same thing. To exclude this, the Philosopher says that in the case of affirmative and negative enunciations of universals not taken universally, one need not always be true and the other false, but they can be at once true. For it is true to say both that "Man is white” and that "Man is not white,” and that "Man is honorable” and "Man is not honorable.
Aquinas lib. 1 l. 11 n. 9 In quo quidem, ut Ammonius refert, aliqui Aristoteli contradixerunt ponentes quod indefinita negativa semper sit accipienda pro universali negativa. Et hoc astruebant primo quidem tali ratione: quia indefinita, cum sit indeterminata, se habet in ratione materiae; materia autem secundum se considerata, magis trahitur ad id quod indignius est; dignior autem est universalis affirmativa, quam particularis affirmativa; et ideo indefinitam affirmativam dicunt esse sumendam pro particulari affirmativa: sed negativam universalem, quae totum destruit, dicunt esse indigniorem particulari negativa, quae destruit partem, sicut universalis corruptio peior est quam particularis; et ideo dicunt quod indefinita negativa sumenda est pro universali negativa. Ad quod etiam inducunt quod philosophi, et etiam ipse Aristoteles utitur indefinitis negativis pro universalibus; sicut dicitur in libro Physic. quod non est motus praeter res; et in libro de anima, quod non est sensus praeter quinque. Sed istae rationes non concludunt. Quod enim primo dicitur quod materia secundum se sumpta sumitur pro peiori, verum est secundum sententiam Platonis, qui non distinguebat privationem a materia, non autem est verum secundum Aristotelem, qui dicit in Lib. I Physic. quod malum et turpe et alia huiusmodi ad defectum pertinentia non dicuntur de materia nisi per accidens. Et ideo non oportet quod indefinita semper stet pro peiori. Dato etiam quod indefinita necesse sit sumi pro peiori, non oportet quod sumatur pro universali negativa; quia sicut in genere affirmationis, universalis affirmativa est potior particulari, utpote particularem affirmativam continens; ita etiam in genere negationum universalis negativa potior est. Oportet autem in unoquoque genere considerare id quod est potius in genere illo, non autem id quod est potius simpliciter. Ulterius etiam, dato quod particularis negativa esset potior omnibus modis, non tamen adhuc ratio sequeretur: non enim ideo indefinita affirmativa sumitur pro particulari affirmativa, quia sit indignior, sed quia de universali potest aliquid affirmari ratione suiipsius, vel ratione partis contentae sub eo; unde sufficit ad veritatem eius quod praedicatum uni parti conveniat (quod designatur per signum particulare); et ideo veritas particularis affirmativae sufficit ad veritatem indefinitae affirmativae. Et simili ratione veritas particularis negativae sufficit ad veritatem indefinitae negativae, quia similiter potest aliquid negari de universali vel ratione suiipsius, vel ratione suae partis. Utuntur autem quandoque philosophi indefinitis negativis pro universalibus in his, quae per se removentur ab universalibus; sicut et utuntur indefinitis affirmativis pro universalibus in his, quae per se de universalibus praedicantur. 9. On this point, as Ammonius reports, some men, maintaining that the indefinite negative is always to be taken for the universal negative, have taken a position contradictory to Aristotle’s. They argued their position in the following way. The indefinite, since it is indeterminate, partakes of the nature of matter; but matter considered in itself is regarded as what is less worthy. Now the universal affirmative is more worthy than the particular affirmative and therefore they said that the indefinite affirmative was to be taken for the particular affirmative. But, they said, the universal negative, which destroys the whole, is less worthy than the particular negative, which destroys the part (just as universal corruption is worse than particular corruption); therefore, they said that the indefinite negative was to be taken for the universal negative. They went on to say in support of their position that philosophers, and even Aristotle himself, used indefinite negatives as universals. Thus, in the book Physicorum [III, 1: 200b 32] Aristotle says that there is not movement apart from the thing; and in the book De anima [III, 1: 424b 20], that there are not more than five senses. However, these reasons are not cogent. What they say about matter—that considered in itself it is taken for what is less worthy—is true according to the opinion of Plato, who did not distinguish privation from matter; however, it is not true according to Aristotle, who says in I Physicae [9: 192a 3 & 192a 22], that the evil and ugly and other things of this kind pertaining to defect, are said of matter only accidentally. Therefore the indefinite need not stand always for the more ignoble. Even supposing it is necessary that the indefinite be taken for the less worthy, it ought not to be taken for the universal negative; for just as the universal affirmative is more powerful than the particular in the genus of affirmation, as containing the particular affirmative, so also the universal negative is more powerful in the genus of negations. Now in each genus one must consider what is more powerful in that genus, not what is more powerful simply. Further, if we took the position that the particular negative is more powerful than all other modes, the reasoning still would not follow, for the indefinite affirmative is not taken for the particular affirmative because it is less worthy, but because something can be affirmed of the universal by reason of itself, or by reason of the part contained under it; whence it suffices for the truth of the particular affirmative that the predicate belongs to one part (which is designated by the particular sign); for this reason the truth of the particular affirmative suffices for the truth of the indefinite affirmative. For a similar reason the truth of the particular negative suffices for the truth of the indefinite negative, because in like manner, something can be denied of a universal either by reason of itself, or by reason of its part. Apropos of the examples cited for their argument, it should be noted that philosophers sometimes use indefinite negatives for universals in the case of things that are per se removed from universals; and they use indefinite affirmatives for universals in the case of things that are per se predicated of universals.
Aquinas lib. 1 l. 11 n. 10 Deinde cum dicit: si enim turpis est etc., probat propositum per id, quod est ab omnibus concessum. Omnes enim concedunt quod indefinita affirmativa verificatur, si particularis affirmativa sit vera. Contingit autem accipi duas affirmativas indefinitas, quarum una includit negationem alterius, puta cum sunt opposita praedicata: quae quidem oppositio potest contingere dupliciter. Uno modo, secundum perfectam contrarietatem, sicut turpis, idest inhonestus, opponitur probo, idest honesto, et foedus, idest deformis secundum corpus, opponitur pulchro. Sed per quam rationem ista affirmativa est vera, homo est probus, quodam homine existente probo, per eamdem rationem ista est vera, homo est turpis, quodam homine existente turpi. Sunt ergo istae duae verae simul, homo est probus, homo est turpis; sed ad hanc, homo est turpis, sequitur ista, homo non est probus; ergo istae duae sunt simul verae, homo est probus, homo non est probus: et eadem ratione istae duae, homo est pulcher, homo non est pulcher. Alia autem oppositio attenditur secundum perfectum et imperfectum, sicut moveri opponitur ad motum esse, et fieri ad factum esse: unde ad fieri sequitur non esse eius quod fit in permanentibus, quorum esse est perfectum; secus autem est in successivis, quorum esse est imperfectum. Sic ergo haec est vera, homo est albus, quodam homine existente albo; et pari ratione, quia quidam homo fit albus, haec est vera, homo fit albus; ad quam sequitur, homo non est albus. Ergo istae duae sunt simul verae, homo est albus, homo non est albus. 10. When he says, For if he is ugly, he is not beautiful, etc., he proves what he has proposed by something conceded by everyone, namely, that the indefinite affirmative is verified if the particular affirmative is true. We may take two indefinite affirmatives, one of which includes the negation of the other, as for example when they have opposed predicates. Now this opposition can happen in two ways. It can be according to perfect contrariety, as shameful (i.e., dishonorable) is opposed to worthy (i.e., honorable) and ugly (i.e., deformed in body) is opposed to beautiful. But the reasoning by which the affirmative enunciation, "Man is worthy,” is true, i.e., by some worthy man existing, is the same as the reasoning by which "Man is shameful” is true, i.e., by a shameful man existing. Therefore these two enunciations are at once true, "Man is worthy” and "Man is shameful.” But the enunciation, "Man is not worthy,” follows upon "Man is shameful.” Therefore the two enunciations, " Man is worthy,” and "Man is not worthy,” are at once true; and by the same reasoning these two, "Man is beautiful” and "Man is not beautiful.” The other opposition is according to the complete and incomplete, as to be in movement is opposed to to have been moved, and becoming to to have become. Whence the non-being of that which is coming to be in permanent things, whose being is complete, follows upon the becoming but this is not so in successive things, whose being is incomplete. Thus, "Man is white” is true by the fact that a white man exists; by the same reasoning, because a man is becoming white, the enunciation "Man is becoming white” is true, upon which follows, "Man is not white.” Therefore, the two enunciations, "Man is white” and "Man is not white” are at once true.
Aquinas lib. 1 l. 11 n. 11 Deinde cum dicit: videbitur autem etc., excludit id quod faceret dubitationem circa praedicta; et dicit quod subito, id est primo aspectu videtur hoc esse inconveniens, quod dictum est; quia hoc quod dico, homo non est albus, videtur idem significare cum hoc quod est, nullus homo est albus. Sed ipse hoc removet dicens quod neque idem significant neque ex necessitate sunt simul vera, sicut ex praedictis manifestum est. 11. Then when he says, At first sight this might seem paradoxical, etc., he excludes what might present a difficulty in relation to what has been said. At first sight, he says, what has been stated seems to be inconsistent; for "Man is not white” seems to signify the same thing as "No man is white.” But he rejects this when he says that they neither signify the same thing, nor are they at once true necessarily, as is evident from what has been said.

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