Prokles, second husband of Aristotle’s daughter, [20].
Proof (τεκμήριον) distinguished from Sign, [203].
[Propositions], subject of De Interpretatione, [57], [109]; Terms treated by Aristotle with reference to, [59]; Ens divided with reference to, [59]; defined, [109]; distinguished in signification from Terms, [109], [110], also from other modes of significant speech, [111], [130]; Simple, Complex, [111]; Affirmative, Negative, [111], [122]; Contradictory (pair of, making Antiphasis), Contrary, [111], [124], [134]; Universal, Singular, [111]; about matters particular and future, [113]; in quaternions illustrative of real Antiphasis, [118] seq.; subject of, and predicate of, to be each One, [125]; function of copula in, [126]; Simple Assertory, Modal (Possible or Problematical and Necessary), [127] seq.; subjective and objective aspects of, [131]; Aristotle’s theory of, compared with views of Plato and others, [135]; summarized, [139]; how named in Analytica, [141]; named either as declaring, or as generating, truth, [141]; formally classified according to Quantity in Analytica, [142]; Universal, double account of, [142]; Conversion of, taken singly, [144]; rules for Conversion of Universal Negative, Affirmative, &c., [144] seq.; comparison of, as subjects of attack and defence, [156]; Indivisible or Immediate, and Mediate — modes of error with regard to, [224] seq.; as subject-matter of Dialectic, [273]; classified for purposes of Dialectic, [276].
Proprium, one of the Predicables, [276]; thesis of, hardest, after Definition, to defend, [285], [353]; dialectical Loci bearing on, [313] seq.; ten different modes of, [321].
Πρός τι, see [Relation].
Protagoras, his doctrine, “Homo Mensura� impugned by Aristotle as adverse to the Maxim of Contradiction, [430] seq., [587] seq.; true force of his doctrine, [431]; misapprehended by Aristotle and Plato, [432].
Πρότασις, name for Proposition in Analytica, [141].
Proxenus, of Atarneus, guardian of Aristotle at Stageira, [3]; mentioned in Aristotle’s will, [19].
Pseudographeme or Scientific Paralogism, [267]; or pseudographic syllogism, [380].
Psychology, relation of, to Logic, [110]; summary of Aristotle’s, [493].