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This early work on philosophy is both expensive and hard to find in its first edition. It contains studies and exercises used in formal logic. This is a fascinating work and thoroughly recommended for students of philosophy. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce. We are republishing these classic works in affordable, high quality, modern editions, using the original text an...

Originally published in 1881. STUDIES AND EXERCISES IN FORMAL LOGIC- INCLUDING GENERALISATION OF LOGICAL PROCESSES IN THEIll APPLICATION TO COMPLEX INFERENCES by JOHN NEVILLE KEYNES. PREFACE TO THE FOURTH EDITION: IN this edition many of the sections have been re-written and a good deal of new matter has been introduced. The following are some of the more important modifications. In Part I a new definition of connotative name is proposed, in t...