System of Logic and History of Logical Doctrines

abstract according actual existence affirmative Anal apodictic Arist Aristotelian Aristotle assertion attributes axiom of Contradiction belongs categorical syllogism Categories combination conception consciousness contradictory opposite Contraposition corresponds defined definition denote Dialectic distinction distinguished division doctrine elements essence essential explained expression external false Figure formal forms of thought genus Hamilton Hegel Herbart Ibid identical individual inference J. S. Mill Kant Kantian knowledge laws laws of Identity laws of thought Leibniz Logic logicians Logik major premise material truth mathematical means ment mental Metaph metaphysical middle notion nature negation negative Not-P objective Organon Parmenides partly perception Philos philosophy Plato possibility praedicatum predicate presupposition principle priori proposition recognised reference relation Schleiermacher Scholasticism scientific sense sense-perception species spheres syllogism syllogistic synthetic theory things thinking tion Trendelenburg true universal validity Wolff γὰρ δὲ εἶναι ἐν καὶ κατὰ μὲν μὴ οὐκ τὰ τὸ τοῦ τῷ τῶν