Part I then concludes with a discussion of the five "predicables" from Porphyry's Isagoge and of each of Aristotle's categories.
Latencies of saccades to predicable targets (extracted from the calibration sequence; see Fixation and oculomotor tasks) were also analyzed.
What he says he means by this is that the predicate be truly predicable at some time, in the present tense, of the supposita of the subject.
In both cases we have a particular that is also a property, a subject of predication that is also a predicable entity, where the predicable entity is predicated of itself.
When it comes to being predicable, however, most types diverge from such classic examples of universals as the property of being white or the relation of being east of.
This makes his logical system considerably different from the Aristotelian/Neo-Platonic systems of the Middle Ages, since for the latter the predicative relation of any sentence of the subject/copula/predicate form had to be understood as modally determined by the particular nature of the predicable corresponding to the predicate (i.e., its species, genus, difference, proprium, accident).
On this account, substance is best understood by analogy with a grammatical subject it takes a predicate, and is not predicable of anything further.
Leibniz agreed with Aristotle's characterization of substance as the grammatical subject of predication and not itself predicable of anything else.
For centuries, the Isagoge was the first logic text a student would tackle, and Porphyry's five predicables (which differ from Aristotle's four) formed the basis for the medieval doctrine of the quinque voces.
Regional correlations are strong, and although the US affects Latin American countries in predicable ways the dominant effect seems to be from domestic monetary policy.
