Cursus Philosophicus Thomisticus, Secunda Pars Artis Logicae

John of St. Thomas

Cursus Philosophicus Thomisticus, Secunda Pars Artis Logicae

John of St. Thomas (1589–1644)

Secunda pars artis Logicae of the Cursus Philosophicus Thomisticus of John of St. Thomas (Joannes a Sancto Thoma), from the Reiser edition (Marietti, Turin, 1930), Reiser tomus I, pars secunda.


Praefatio I: Author's preface to the fourth edition of the second part of the art of Logic

Prooemium I: PROEM

Quaestio I: ON LOGIC: WHAT IT IS AND HOW FAR IT EXTENDS

Articulus I: WHETHER THE ART OF LOGIC IS ABSOLUTELY NECESSARY FOR ACQUIRING THE OTHER SCIENCES

Articulus II: WHETHER LOGIC IS A TRUE SCIENCE AND ART

Articulus III: WHETHER THE FORMAL AND ADEQUATE OBJECT OF LOGIC IS A BEING OF REASON, WHICH IS A SECOND INTENTION

Articulus IV: WHETHER LOGIC IS A SPECULATIVE OR PRACTICAL SCIENCE

Articulus V: HOW LOGIC AS A DOCTRINE IS DISTINGUISHED FROM LOGIC IN USE

Quaestio II: ON LOGICAL BEING OF REASON, WHICH IS A SECOND INTENTION

Articulus I: WHAT A BEING OF REASON IN GENERAL IS, AND HOW MANY KINDS THERE ARE

Articulus II: WHAT A SECOND INTENTION AND A LOGICAL RELATION OF REASON ARE, AND HOW MANY KINDS THERE ARE

Articulus III: WHAT THE DISTINCTION AND UNITY OF REASONED REASON AND REASONING REASON ARE

Articulus IV: BY WHAT POWER AND THROUGH WHICH ACTS BEINGS OF REASON ARE MADE

Articulus V: WHETHER GOD FORMS BEINGS OF REASON

Quaestio III: ON THE UNIVERSAL IN ITSELF

Articulus I: THE VARIOUS MEANINGS OF ‘UNIVERSAL’ AND ITS DEFINITION EXPLAINED

Articulus II: WHETHER THE UNIVERSAL TAKEN MATERIALLY AND AS SUBJECT IS FOUND ON THE SIDE OF THE THING

Articulus III: WHETHER FORMAL UNITY, AS DISTINCT FROM THE SINGULAR, BELONGS TO A NATURE BEFORE THE OPERATION OF THE INTELLECT

Articulus IV: WHETHER APTITUDE AND INDIFFERENCE TO MANY BELONG TO THINGS OUTSIDE THE OPERATION OF THE INTELLECT

Articulus V: WHETHER UNIVERSALITY CONSISTS ESSENTIALLY IN A RELATION

Articulus VI: WHETHER METAPHYSICAL DEGREES IN ANY THING ARE DISTINGUISHED BY A MERE DISTINCTION OF REASON OR BY THE NATURE OF THE THING

Quaestio IV: ON THE CAUSE OF THE UNIVERSAL

Articulus I: WHETHER, BY THE BENEFIT OF THE AGENT INTELLECT, THE METAPHYSICAL UNIVERSAL IS REPRESENTED IN THE SPECIES PRODUCED BY THAT INTELLECT

Articulus II: WHETHER THE METAPHYSICAL UNIVERSAL BECOMES ACTUALLY KNOWN THROUGH AN ABSOLUTE ACT OF THE INTELLECT, AND THE LOGICAL UNIVERSAL THROUGH A COMPARATIVE ACT

Quaestio V: ON THE ACT OF THE UNIVERSAL, WHICH IS TO BE PREDICATED OF MANY

Articulus I: WHAT ‘BEING IN MANY’ AND ‘BEING PREDICATED OF MANY’ MEAN IN UNIVERSAL NATURE

Articulus II: WHAT PREDICATION IS AND WHAT IS REQUIRED FOR ITS VERIFICATION

Articulus III: HOW MANY THINGS ARE REQUIRED FOR SOMETHING TO BE CALLED UNIVERSAL OR COMMON

Articulus IV: HOW PREDICATIONS ARE VERIFIED IN SUBSTANTIAL CONCRETE AND ABSTRACT TERMS

Articulus V: HOW PREDICATIONS ARE VERIFIED IN ACCIDENTAL CONCRETE AND ABSTRACT TERMS

Quaestio VI: ON THE DIVISION OF THE UNIVERSAL INTO THE FIVE PREDICABLES

Articulus I: WHETHER THIS DIVISION IS GOOD AND ADEQUATE

Articulus II: WHETHER THIS DIVISION IS A DIVISION OF A GENUS INTO SPECIES AND IS IMMEDIATE

Quaestio VII: ON THE GENUS

Articulus I: WHETHER THE DEFINITION OF GENUS GIVEN BY PORPHYRY IS GOOD

Articulus II: WHAT IS DEFINED IN THE DEFINITION OF GENUS: THE INTENTION ITSELF, THE SUBJECT, OR A COMPOSITE OF BOTH

Articulus III: HOW GENUS IS CALLED A POTENTIAL WHOLE AND IS DERIVED FROM MATTER

Quaestio VIII: ON PREDICABLE AND SUBJECTABLE SPECIES

Articulus I: WHETHER SPECIES IS CONSTITUTED AS SPECIES BY THE CHARACTER OF BEING SUBJECTABLE OR PREDICABLE

Articulus II: THE DEFINITIONS OF SPECIES EXPLAINED

Articulus III: WHETHER THERE CAN BE A SUBJECTABLE SPECIES THAT IS NOT PREDICABLE OF MANY BUT HAS ONLY ONE INDIVIDUAL

Articulus IV: WHETHER SPECIES CAN BE PRESERVED IN ONLY ONE INDIVIDUAL AND GENUS IN ONLY ONE SPECIES

Quaestio IX: ON THE INDIVIDUAL

Articulus I: WHETHER THE DEFINITIONS OF THE INDIVIDUAL ARE RIGHTLY EXPLAINED

Articulus II: WHAT AN INDIVIDUAL IN GENERAL, OR A VAGUE INDIVIDUAL, IS

Quaestio X: ON DIFFERENCE, TAKEN IN GENERAL AND AS THE THIRD PREDICABLE

Articulus I: WHETHER DIFFERENCE IS RIGHTLY DIVIDED INTO COMMON, PROPER, AND MOST PROPER

Articulus II: WHETHER THE DEFINITIONS OF DIFFERENCE AS THE THIRD PREDICABLE ARE GOOD

Articulus III: WHETHER DIFFERENCE IS CALLED UNIVERSAL IN RELATION TO ITS SPECIES OR IN RELATION TO THE INFERIORS OF THAT SPECIES

Articulus IV: WHETHER SUPERIOR AND GENERIC DIFFERENCES ARE INCLUDED IN ATOMIC DIFFERENCES AND PREDICATED OF THEM

Quaestio XI: ON THE PROPER

Articulus I: THE NATURE OF THE PROPER IS EXPLAINED, AND ITS DIVISIONS ARE EXAMINED

Articulus II: WHAT THE FOURTH PREDICABLE PROPER IS AND WITH RESPECT TO WHICH THINGS IT IS TAKEN

Quaestio XII: ON THE FIFTH PREDICABLE, ACCIDENT

Articulus I: WHETHER THE DEFINITIONS AND DIVISIONS OF ACCIDENT WERE RIGHTLY GIVEN BY PORPHYRY

Articulus II: HOW ACCIDENT IS CALLED THE FIFTH PREDICABLE AND WITH RESPECT TO WHICH INFERIORS

Liber I: BOOK OF THE CATEGORIES

Quaestio XIII: ON THE PRE-PREDICAMENTS AND ANALOGUES

Articulus I: WHAT THE PRE-PREDICAMENTS ARE AND WHY ARISTOTLE TREATED THEM HERE

Articulus II: ON THE DEFINITION AND DIVISION OF EQUIVOCALS

Articulus III: WHAT ANALOGY IS AND HOW MANY KINDS THERE ARE

Articulus IV: THE CONDITIONS OF THESE ANALOGUES ARE EXPLAINED

Articulus V: WHETHER IN ANALOGUES THERE IS ONE CONCEPT ABSTRACTED FROM THE INFERIORS

Quaestio XIV: ON PREDICAMENTAL BEING AND ITS DIVISION INTO TEN CATEGORIES

Articulus I: WHAT A CATEGORY IS AND WHAT IS REQUIRED FOR SOMETHING TO BE IN A CATEGORY

Articulus II: WHETHER BEING IS UNIVOCAL OR ANALOGOUS WITH RESPECT TO THE TEN CATEGORIES

Articulus III: BY WHAT ANALOGY BEING IS ANALOGOUS

Articulus IV: WHETHER ACCIDENT IS UNIVOCAL WITH RESPECT TO THE NINE GENERA

Articulus V: WHETHER THE DIVISION INTO TEN CATEGORIES IS ADEQUATE AND GOOD

Quaestio XV: ON PREDICAMENTAL SUBSTANCE

Articulus I: WHAT THE FORMAL CONSTITUTIVE ACCOUNT OF PREDICAMENTAL SUBSTANCE IS

Articulus II: WHETHER SUBSTANCE IS RIGHTLY DIVIDED INTO FIRST AND SECOND

Articulus III: HOW THE DEFINITIONS OF FIRST AND SECOND SUBSTANCE ARE TO BE EXPLAINED

Articulus IV: WHICH THINGS ARE REJECTED AND INCLUDED IN THIS CATEGORY

Articulus V: WHETHER RECEIVING CONTRARIES IS PROPER TO SUBSTANCE IN THE FOURTH MODE

Quaestio XVI: ON QUANTITY

Articulus I: WHAT THE PROPER AND FORMAL ACCOUNT OF QUANTITY IS

Articulus II: WHETHER DISCRETE QUANTITY IS A TRUE SPECIES OF QUANTITY

Articulus III: WHETHER TIME AND MOTION, PLACE AND SPEECH ARE EXCLUDED FROM THE SPECIES OF QUANTITY

Articulus IV: WHETHER LINE, SURFACE, AND BODY ARE TRUE SPECIES OF QUANTITY

Quaestio XVII: ON THE CATEGORY OF RELATION

Articulus I: WHETHER THERE ARE, ON THE PART OF THE THING, RELATIONS THAT ARE INTRINSIC FORMS

Articulus II: WHAT IS REQUIRED FOR A RELATION TO BE PREDICAMENTAL

Articulus III: WHAT THE DIVISIONS OF PREDICAMENTAL RELATION AND ITS SPECIES ARE

Articulus IV: WHETHER RELATION IS DISTINGUISHED FROM ITS FOUNDATION ON THE PART OF THE THING

Articulus V: WHETHER RELATION IS FORMALLY TERMINATED AT THE ABSOLUTE OR THE RELATIVE

Articulus VI: FROM WHAT THE SPECIFIC AND NUMERICAL DISTINCTION OF RELATION IS DERIVED

Articulus VII: HOW THE PROPERTIES OF RELATIVES ARE TO BE EXPLAINED: THAT THEY ARE SIMULTANEOUS BY NATURE AND BY KNOWLEDGE

Quaestio XVIII: ON QUALITY

Articulus I: THE FORMAL ACCOUNT OF QUALITY AND ITS DEFINITION ARE EXPLAINED

Articulus II: THE DIVISION OF QUALITY INTO FOUR SPECIES IS EXPLAINED

Articulus III: HOW EACH OF THE SPECIES IS TO BE EXPLAINED

Quaestio XIX: ON THE SIX LAST CATEGORIES

Articulus I: WHETHER THESE CATEGORIES ARE ABSOLUTE FORMS, RELATIVE FORMS, OR EXTRINSIC DENOMINATIONS

Articulus II: WHAT PREDICAMENTAL ACTION AND PASSION ARE

Articulus III: WHAT THE CATEGORY OF WHERE AND POSITION IS

Articulus IV: WHAT THE CATEGORY OF WHEN AND HAVING IS

Textus I: TEXT FOLLOWING THE CATEGORIES

Quaestio XX: ON THE POST-PREDICAMENTS

Articulus I: OPPOSITIONS ARE EXPLAINED

Articulus II: WHAT SHOULD BE NOTED CONCERNING THE REMAINING POSTPREDICAMENTS

Liber II: ON THE BOOKS ON INTERPRETATION

Quaestio XXI: ON THE SIGN IN ITSELF

Articulus I: WHETHER A SIGN IS IN THE CATEGORY OF RELATION

Articulus II: WHETHER THE RELATION IN A NATURAL SIGN IS REAL OR OF REASON

Articulus III: WHETHER THE RELATION OF A SIGN TO WHAT IT SIGNIFIES AND TO A POWER IS THE SAME

Articulus IV: HOW THE OBJECT IS DIVIDED INTO MOTIVE AND TERMINATIVE

Articulus V: WHETHER TO SIGNIFY IS FORMALLY TO CAUSE SOMETHING IN THE CATEGORY OF EFFICIENT CAUSATION

Articulus VI: WHETHER THERE IS A TRUE CHARACTER OF SIGN IN BRUTES AND EXTERNAL SENSES

Quaestio XXII: ON THE DIVISIONS OF THE SIGN

Articulus I: WHETHER THE DIVISION OF SIGN INTO FORMAL AND INSTRUMENTAL IS UNIVOCAL AND GOOD

Articulus II: WHETHER A CONCEPT IS A FORMAL SIGN

Articulus III: WHETHER AN IMPRESSED SPECIES IS A FORMAL SIGN

Articulus IV: WHETHER AN ACT OF KNOWING IS A FORMAL SIGN

Articulus V: WHETHER THE DIVISION INTO NATURAL, CONVENTIONAL, AND CUSTOMARY SIGNS IS GOOD

Articulus VI: WHETHER A SIGN BY CUSTOM IS TRULY A SIGN

Quaestio XXIII: ON NOTIONS AND CONCEPTS

Articulus I: WHETHER INTUITIVE AND ABSTRACTIVE NOTIONS DIFFER ESSENTIALLY IN THE CHARACTER OF COGNITION

Articulus II: WHETHER THERE CAN BE INTUITIVE COGNITION OF A THING PHYSICALLY ABSENT, EITHER IN THE INTELLECT OR IN EXTERNAL SENSE

Articulus III: HOW A REFLEX CONCEPT DIFFERS FROM A DIRECT ONE

Articulus IV: WHAT SORT OF DISTINCTION THERE IS BETWEEN A ULTIMATE AND A NONULTIMATE CONCEPT

“Ultimated” and “non-ultimated” are said relatively, like end and means. In general, therefore, any concept that is the terminus and end of another may be called ultimated, so that one is ordered to the other. In this way one operation of the intellect is ordered to another, principles to conclusions, and reasoning to a perfect judgment. In all these cases there is something at which cognition comes to rest, called the ultimate, and something by which it tends toward that terminus, called a means or non-ultimate.

As for dialecticians, who treat names and significant words, the ultimated and non-ultimated concept are distinguished by this: the ultimated concerns the things signified, while the non-ultimated concerns the words that signify them. This helps discern Logic’s object: Logic does not treat things themselves insofar as they are things, as physics does, but the instruments by which things are known, which are for the most part significant words, when rightly disposed and ordered.

From this it follows that the ultimated and non-ultimated are not per se and formally essential differences of concepts, since they do not belong to the object insofar as it constitutes the knowable nature; rather they belong to the ordering of one concept or cognition to another. They therefore add to a concept only relations or dispositions toward objects, not insofar as these are knowable and specifying, but as ordered like a means and a terminus. The essential difference of cognition is taken from the object as motive, specifying, and knowable; everything else consists in consequent relations or connotations. Yet these relations sometimes presuppose a distinction of objects, although they do not formally constitute it. Thus the ultimated and non-ultimated concepts at issue here occur between distinct concepts: one concerns the thing signified and another the word signifying it. Since they concern different objects, they are distinct concepts by presupposition, not formally by virtue of being ultimated and non-ultimated.

One cannot say, as some authors teach, that the concept of a significant word signifies by convention the object of an ultimated concept—not because the concept itself has been imposed to signify, but because its object, namely the word, signifies a thing by imposition. This is impossible, however, because a concept is such a natural likeness of its object that it in no way derives conventional signification from the object. Rather, the concept naturally signifies that very conventional signification of the word, as its image. The conventional signification of the word is therefore not an exercise of the concept’s signifying, but the object signified by the concept.

THE QUESTION THAT REMAINS HERE, THEN, is whether a non-ultimated concept of a word represents only the word itself and not its signification, or represents both.

Almost everyone agrees that some ordering toward signification is required for a concept to be non-ultimated. For if a word is considered without qualification merely as a sound produced by an animal, it clearly belongs to an ultimated concept, since it is considered as a thing, as Philosophy treats it.

Some say that the signification of a word need not be represented in a non-ultimated concept; it is enough that the signification be exercised or presupposed as habitually known.

It is truer, however, that the signification itself must also be represented in the non-ultimated concept. It is called non-ultimated precisely insofar as something is conceived at which one does not finally rest, but which is taken as a means to a further terminus. Only the word’s signification constitutes it as a means relative to the thing signified. Therefore, if the signification is not conceived, neither is that by which the word is constituted as a means or non-ultimate conceived. Nor is it enough to say that the signification is exercised, since the word as represented there does not exercise its conventional signification. All that is exercised in that concept is natural signification; therefore the conventional signification of the conceived word is not exercised but represented. It is not necessary to attain the very essence of conventional signification and the relation of imposition; it suffices to know that there is signification. Still less is habitual knowledge of the signification or imposition sufficient: habitual knowledge is cognition only in first act, and unless it passes into second act, the concept cannot be called actually non-ultimated, since a concept is an actual representation. Habitual knowledge of signification, then, cannot denominate an actual concept as non-ultimated.

BUT YOU WILL OBJECT: A countryman who hears the Latin word “animal,” whose meaning he does not know, forms a non-ultimated concept of that word, since he does not pass on to the thing signified, and yet he does not know its meaning. Therefore representation of the meaning is not required for a non-ultimated concept.

It is confirmed because concepts signify the same thing for everyone, as Aristotle says in On Interpretation I, ch. 1. But word meanings are not the same for everyone. Therefore non-ultimated concepts do not represent word meanings; otherwise they would not signify the same thing for everyone.

THE ANSWER IS that the countryman who hears that word either knows that the word is significant—at least, that it signifies something—because he sees people speaking with it, although he does not know what it signifies; or he does not know at all that it is significant. In the first case, he forms a non-ultimated concept because he truly knows the word as significant. In the second, it will be an ultimated concept, since it represents the word only as a sound, not as a sign and means leading to something else. When he perceives that it signifies, without yet knowing what the signification was imposed to signify, his concept is called non-ultimated: although in fact it does not lead to the particular thing signified as an ultimate, it at least leads in general and confusedly, owing to the subject’s ignorance of the signification.

To the confirmation, concepts signify the same thing for everyone when they concern the same object and are formed in the same way, for they are natural likenesses. Thus all non-ultimated concepts representing words insofar as significant represent the same thing for everyone in whom they are so formed. If they are not formed in the same way for everyone, because not everyone knows the word’s signification, they are not the same concepts and do not signify the same thing for everyone.

Second, it is argued: If a non-ultimated concept represents the word’s signification, then when it represents an equivocal term either several concepts of that word are formed, or only one. If only one, there will be equivocation in the mind, since it signifies a word with several unconnected meanings. If several concepts, it follows that no concept of an equivocal word exists in the mind, because a single word is never presented with several meanings; consequently, it cannot be uttered orally, since only what is conceived in the mind is uttered. But no equivocal term is then conceived, because several concepts of the word are formed, each having only one meaning, and so each will be univocal.

THE ANSWER IS that there is only one non-ultimated concept of an equivocal term, for example, “dog,” because it represents one word having several meanings, just as a concept representing a man represents a man having several accidents. This does not entail equivocation in that concept, because the several meanings are not formally in the concept but objectively. The concept represents an object having several meanings, namely that word, through a single natural likeness representing one word affected by several impositions. Equivocation in the mind would follow only if one concept had several formal meanings, which are natural likenesses; these cannot be multiplied in one concept. But there is no difficulty in one concept representing several meanings of a word or sign as the thing represented, since this occurs by a single formal representation.

You will insist: That non-ultimated concept of an equivocal term is ordered to several ultimated concepts, because it is ordered to several things signified, and not by one ordering but several, which belong to the concept’s representation. Therefore, just as a word is equivocal because several signifying relations are directed to several things signified, the concept should be called equivocal because of its several relations to several ultimated concepts.

The answer is that the non-ultimated concept is ordered to several ultimated concepts by one ordering on the side of formal representation, but by several on the side of the object represented. For by one natural signification it represents a word ordered, through several impositions, to several things signified. Thus on the side of the object it represents several relations belonging to the word toward several things and several ultimated concepts, and so that concept represents several relations; formally, however, it has one representation of that word affected by several relations.

Finally, it is argued: The same concept of a word that is non-ultimated will become ultimated merely if the word is stripped of its signification, because it will signify that word as a thing at which one finally rests. Therefore it does not differ essentially from an ultimated concept, since it can become ultimated without any intrinsic change. Nor can one say that the word will take the place of a terminus relative to itself because it represents itself; otherwise any thing representing itself would have a non-ultimated concept insofar as it represents itself.

THE ANSWER IS that those concepts do not differ essentially precisely because one is ultimated and the other non-ultimated, as was shown; rather, they differ because they are presupposed to concern different objects, from which essential diversity is taken. Thus, if a word were stripped of its signification and the intellect knew this and formed a concept of the word as non-signifying, that concept would already be distinct from the non-ultimated concept previously formed of it as significant. It would be an ultimated concept of the word as a thing, not as a sign. But if the intellect did not know that it had been stripped of signification and continued the prior concept of it as significant, that concept would remain non-ultimated as before, though false; its falsity would change, not its essential representation.

Observe that although the relations of ultimated and non-ultimated concepts differ in species as different modes of concepts, they do not formally function as specifications of the concepts themselves. They make the modes specifically distinct, but not the intrinsic nature of the concepts themselves, except insofar as the latter have objects distinct in species.

Liber III: ON THE BOOKS OF THE POSTERIOR ANALYTICS

Quaestio XXIV: ON PRECOGNITIONS AND PREMISES

Articulus I: WHAT PRECOGNITIONS AND PRENOTIONS ARE

Articulus II: WHETHER PREMISES EXERT AN EFFICIENT INFLUENCE ON THE CONCLUSION OR IN SOME OTHER KIND OF CAUSATION

Articulus III: WHETHER PREMISES ARE NECESSARY FOR ASSENT TO THE CONCLUSION, SUCH THAT THE MINOR PREMISE IS KNOWN TOGETHER WITH THE CONCLUSION

Articulus IV: WHAT A PER SE AND IMMEDIATE PROPOSITION IS: A PREDICATE OF ALL, PER SE, AND ACCORDING TO ITSELF

Quaestio XXV: ON DEMONSTRATION

Articulus I: WHETHER ARISTOTLE RIGHTLY DEFINED DEMONSTRATION

Articulus II: WHAT IS REQUIRED FOR A PROPOSITION TO BE DEMONSTRABLE

Articulus III: WHETHER EVERY CIRCULAR DEMONSTRATION IS FALLACIOUS

Articulus IV: WHAT DEMONSTRATION ‘THAT’ AND ‘WHY’ ARE, AND WHETHER THIS IS A GOOD DIVISION

Quaestio XXVI: ON SCIENCE BOTH IN ITSELF AND IN RELATION TO OPINION AND FAITH

Articulus I: WHAT SCIENCE IS AND HOW IT IS DISTINGUISHED FROM THE OTHER EVIDENT HABITS

Articulus II: WHAT SUBALTERNATING AND SUBALTERNATED SCIENCES ARE, AND HOW THEY DIFFER FROM EACH OTHER

Articulus III: WHETHER A SUBALTERNATED SCIENCE IS TRULY AND PROPERLY A SCIENCE, EVEN IF IT IS NOT LINKED TO THE SUBALTERNATING SCIENCE

Articulus IV: WHAT THE INEVIDENT HABITS ARE AND HOW THEY DIFFER FROM ONE ANOTHER

Articulus V: WHETHER OPINION AND FAITH ARE INTRINSICALLY INCOMPATIBLE WITH SCIENCE

Quaestio XXVII: ON THE UNITY AND DISTINCTION OF THE SCIENCES

Articulus I: FROM WHAT THE SPECIFIC UNITY OR DIVERSITY OF THE SCIENCES IS DERIVED IN THE CHARACTER OF WHAT IS KNOWABLE

Articulus II: WHETHER SCIENCE IS ONE SIMPLE QUALITY AND HABIT

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