Symbolic Logic by Lewis Carroll is an elementary textbook on formal logic. It presents methods for working with syllogisms, using diagrams and counters to show how conclusions follow from premises. It is worth listening to for its clear, playful approach to reasoning.
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Text source: gutenberg.org · The work is in the public domain.
Opening of the book
pg_iSYMBOLIC LOGIC By Lewis Carroll pg_ii pg_iii pg_iv
A Syllogism worked out. That story of yours, about your once meeting the sea-serpent, always sets me off yawning; I never yawn, unless when I’m listening to something totally devoid of interest. The Premisses, separately. Diagram representing All Diagram representing Never The Premisses, combined. Diagram representing the combination The Conclusion. Diagram representing the conclusion
That story of yours, about your once meeting the sea-serpent, is totally devoid of interest. pg_vSYMBOLIC LOGIC PART I ELEMENTARY BY LEWIS CARROLL SECOND THOUSAND FOURTH EDITION PRICE TWO SHILLINGS London MACMILLAN AND CO., Limited new york: the macmillan company 1897 All rights reserved pg_viRichard Clay and Sons, Limited, london and bungay pg_viiADVERTISEMENT. An envelope, containing two blank Diagrams (Biliteral and Triliteral) and 9 counters (4 Red and 5 Grey), may be had, from Messrs. Macmillan, for 3d., by post 4d.
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