
A clear, step‑by‑step introduction to the building blocks of symbolic logic, this work begins by sorting the world into “things” and their attributes. Readers are guided through the basics of classification—genus, species, and the subtle differences that separate real from imagined classes—before moving on to the art of division and the precise use of names. Simple definitions and worked examples lay a solid foundation for anyone new to formal reasoning.
The second part shifts focus to propositions, breaking them down into their elemental parts: subjects, predicates, and the four classic forms of quantity. By distinguishing existence from relational statements, the text shows how to translate ordinary sentences into normal forms. Visual tools such as the biliteral diagram and colored counters help listeners picture logical relationships, turning abstract ideas into concrete, manipulable structures. Whether you’re curious about the mechanics of syllogisms or eager to sharpen your analytical skills, the book offers an accessible roadmap to the language of logic.
Language
en
Duration
~11 minutes (11K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Tony Browne, Geetu Melwani, Greg Weeks, L. Lynn Smith and the Online Distributed Proofreading Team at https://www.pgdp.net
Release date
2009-05-05
Rights
Public domain in the USA.
Subjects

1832–1898
Best known for the Alice books, this shy Oxford mathematician turned logic, wordplay, and dreamlike nonsense into some of the most beloved stories in English. Writing as Lewis Carroll, he created a world where language bends, puzzles sparkle, and childhood feels wonderfully strange.
View all books