*Cosma* / Communication / Knowledge / Form / Foundation / Theory / Philosophy / Logic

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## Introduction^{1}

Logic (Garth Kemerling, Philosophy Pages)

What is Logic? (Steve Palmquist, Hong Kong Baptist University)

Factasia: Logic (R.B. Jones)

Logic: Finding The Right Patterns (Andrea Borghini, About.com)

*Dictionary*

logic: a science that deals with the principles and criteria of validity of inference and demonstration —Webster See also OneLook, Free Dictionary, Wiktionary, Urban Dictionary

Dictionary of Philosophical Terms & Names

*Thesaurus*

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

*Glossary*

Glossary of First-Order Logic (Peter Suber, Earlham College)

*Encyclopedia*

Logicis the formal systematic study of the principles of valid inference and correct reasoning. Logic is used in most intellectual activities, but is studied primarily in the disciplines of philosophy, mathematics, semantics, and computer science. Logic examines general forms which arguments may take, which forms are valid, and which are fallacies. In philosophy, the study of logic figures in most major areas: epistemology, ethics, metaphysics. In mathematics, it is the study of valid inferences within some formal language. —Wikipedia(Categories, Index of Articles)

Internet Encyclopedia of Philosophy

The Routledge Encyclopedia of Philosophy

Britannica

*Outline*

### Portal

Logic and Philosophy of Logic (Edited by Aleksandra Samonek, PhilPapers)

Logic Portal (Wikipedia)

## Preservation

### History

The History of Logic from Aristotle to Gödel and Its Relationship with Ontology (Raul Corazzon)

The Oxford Companion to Philosophy (Peter King & Stewart Shapiro)

The history of formal mathematical, logical, linguistic, and methodological ideas (Dictionary of the History of Ideas)

History of Logic (Wikipedia)

*Quotation*

### Museum

### Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

*Bibliography*

Logic (Sundar Sarukkai, Oxford Bibliographies)

John Halleck’s Logic Bibliography

## Participation

### Education

*Course*

A crash course in formal logic (YouTube Channel)

OER Commons: Open Educational Resources

### Community

*Organization*

Association for Symbolic Logic

Association for Informal Logic & Critical Thinking

*News*

Journal of Philosophical Logic (Association for Symbolic Logic)

Journal of Symbolic Logic (Association for Symbolic Logic)

PhilPapers: Logic and Philosophy of Logic (Edited by Aleksandra Samonek, Jagiellonian University)

Logic Eprints (arXiv, Los Alamos Mathematical Archive of eprints)

*Book*

### Government

*Document*

## Expression

### Fun

Zebra Puzzle (Wikipedia)

Riddles YouTube Channel (Ted-Ed)

The Philosophical Lexicon (Daniel Dennett and Asbjørn Steglich-Petersen)

Philosophical Humor-An Oxymoron? (Cheryl and Michael Patton)

Patton’s Argument 101 (Cheryl and Michael Patton)

Patton’s Argument Clinic (Cheryl and Michael Patton)

The Socrates Argument Clinic (Cheryl and Michael Patton)

*Hobby*

Logic Puzzle (Wikipedia)

Logic Puzzles.org

Puzzles, Riddles & Brain Teasers (Brain Den)

*Poem*

OEDILF: The Omnificent English Dictionary In Limerick Form

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Here are links to pages about closely related subjects.

**Knowledge Form**

**Foundation**

**Theory**

**Philosophy** Metaphysics, Logic, Epistemology, Ethics, Aesthetics

**System**, Cycle, Structure, Growth, Complexity, Control, Disturbance, Entropy, Chaos

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1. The **resources** on this page are are organized by a **classification scheme** developed exclusively for *Cosma*.