Chapter I: Front Matter

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SYMBOLIC LOGIC

By Lewis Carroll
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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.

·---------------· ·---------------·
|( ) | ( )| | | |
| ·---|---· | | ·---|---· |
| | (#) | | | | |( )| |
|---|---|---|---| |---|---|---|---|
| | | | | | | |( )| |
| ·---|---· | | ·---|---· |
| | | | | |
·---------------· ·---------------·

The Premisses, combined.

·---------------·
|( ) | ( )|
| ·---|---· |
| |(#)|( )| |
|---|---|---|---|
| | |( )| |
| ·---|---· |
| | |
·---------------·

The Conclusion.

·-------·
|(#)|( )|
|---|---|
| | |
·-------·

That story of yours, about your once meeting the sea-serpent, is totally devoid of interest.

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SYMBOLIC 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_

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RICHARD CLAY AND SONS, LIMITED,
LONDON AND BUNGAY

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ADVERTISEMENT.

An envelope, containing two blank Diagrams (Biliteral and Triliteral) and 9 counters (4 Red and 5 Grey), may be had, from Messrs. Macmillan, for 3_d._, by post 4_d._

* * * * *

I shall be grateful to any Reader of this book who will point out any mistakes or misprints he may happen to notice in it, or any passage which he thinks is not clearly expressed.

* * * * *

I have a quantity of MS. in hand for Parts II and III, and hope to be able----should life, and health, and opportunity, be granted to me, to publish them in the course of the next few years. Their contents will be as follows:--

_PART II. ADVANCED._

Further investigations in the subjects of Part I. Propositions of other forms (such as "Not-all x are y"). Triliteral and Multiliteral Propositions (such as "All abc are de"). Hypotheticals. Dilemmas. &c. &c.

_Part III. TRANSCENDENTAL._

Analysis of a Proposition into its Elements. Numerical and Geometrical Problems. The Theory of Inference. The Construction of Problems. And many other _Curiosa Logica_.

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