First notions of logic (preparatory to the study of geometry)

by Augustus De Morgan

Transcriber’s Note:

The cover image was created by the transcriber and is placed in the public domain.

FIRST NOTIONS
OF
LOGIC
(PREPARATORY TO THE STUDY OF GEOMETRY)

BY

AUGUSTUS DE MORGAN,

OF TRINITY COLLEGE, CAMBRIDGE,

PROFESSOR OF MATHEMATICS IN UNIVERSITY COLLEGE, LONDON.

The root of all the mischief in the sciences, is this; that falsely magnifying and admiring the powers of the mind, we seek not its real helps.—Bacon.

LONDON:

PRINTED FOR TAYLOR AND WALTON,