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LOGIC.

Υμείς μέντοι αν εμοί πείθησθε, σμικρών φροντίσαντες Σωκράτους, της δε αληθείας πολύ μάλλον, εάν μέν τι υμίν δοκώ αληθές λέγειν, ξυνομολογήσατε, ει δε μή, παντί λόγω αντιτείνατε.

Socrates apud Platonem.

Τούτων δε τα μεν πολλοί και παλαιοί λέγουσιν, τα δε ολίγοι και ένδοξοι άνδρες: ουδετέρους δε τούτων εύλογον διαμαρτάνειν τοις όλους, αλλ' έν γέ τι ή και τα πλείστα κατορθούν.

Aristoteles.

Intelligitur, quod ars illa, quae dividit genera in species et species in genera resolvit, quae διαλεκτική dicitur, non ab humanis machinationibus sit facta, sed in natura rerum ab auctore omnium artium, quae vere artes sunt, condita et a sapientibus inventa et ad utilitatem solerti rerum indagine usitata.

Johannes Scotus (Erigena).

Nam normae illae : experientia, principia, intellectus consequentiae, sunt revera vox divina.

Philippus Melanchthon.

LONDON : PRINTED BY
SPOTTISWOODE AND CO., NEW-STREET SQUARE

AND PARLIAMEXT STREET

AND

HISTORY OF LOGICAL DOCTRINES.

BY

DR FRIEDRICH UEBERWEG,

PROFESSOR OF PHILOSOPHY IN THE UNIVERSITY OF KÖNIGSBERG.

TRANSLATED FROM THE GERMAN, WITH NOTES AND APPENDICES,

BY

THOMAS M. LINDSAY, M. A., F.R.S.E.,

EXAMINER IN PHILOSOPHY TO THE

UNIVERSITY OF EDINBURGH.

LONDON:
LONGMANS, GREEN, AND CO.

1871.

AUTHORISED TRANSLATION,

containing the

LATEST ADDITIONS AND CORRECTIONS, AND REVISED BY THE AUTHOR. TO

ALEXANDER CAMPBELL FRASER,

M.A., LL.D., F.R.S.E.,

PROFESSOR OF LOGIC AND METAPHYSICS IN THE

UNIVERSITY OF EDINBURGH,

THIS ATTEMPT

TO FOSTER THE HIGHER STUDY OF LOGIC

BY THE TRANSLATION OF

ONE OF THE BEST GERMAN MANUALS,

IS DEDICATED

BY

AN OLD PUPIL.

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