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Philosophers  (2)

Conditionals and Entailment  (7)
Contradiction and Inconsistency  (5)
Identity  (5)
Informal Logic  (17)
Logic and Knowledge  (5)
Logic and Ontology  (8)

Paradoxes  (15)
Philosophical Analysis@  (8)
Problem of Induction  (5)
Semantics of Logic  (7)
Truth Definitions  (11)
Vagueness  (10)

Dead Logicians Society - Warwick university's very own logic society aiming to increase and stimulate interest in logic and philosophy of logic at the university. Offers news and events.
Frege's Theorem - Article in the Stanford Encylcopaedia of Philosophy, entitled `Frege's Logic, Theorem, and Foundations for Arithmetic'. Discusses the 1980 discovery of Crispin Wright that Frege's work of the Grundgesetze can be carried out in second-order logic with Hume's principle.
Humboldt State University: Argumentation and Critical Thinking Tutorial - Jay VerLinden's resource offering reviews and tests on important concepts in formal logic.
Logic - An online textbook by Garth Kemerling, explaining the basic elements of elementary logic at an undergraduate level.
Logic and Mathematics - Essay on the nature of logic and its relationship to the philosophy of mathematics, written by Stephen G. Simpson.
The Logic Course - An interactive course in formal logic, with tutorials and quizzes on critical thinking, truth-tables, and sentential.
Nordic Journal of Philosophical Logic (NJPL) - Edited at Dep. of Philosophy, Univ. of Oslo, published by Scandinavian U.P. in hard copy and on WWW. Full-text Web edition free for personal use.
Peirce's Logic - Article in the Stanford Encyclopaedia of Philosophy, by Eric Hammer.
PHILOG - The Danish Network for Philosophical Logic and its Applications.
Symbolic Logic - Online resources provided to supplement undergraduate course taught by Peter Suber. Good collection of handouts.
Tips on Translating English into First-Order Logic - An introductory guide by Peter Suber.
Why Aristotelian Logic does not Work - An essay at Abelard.org outlining an argument against Aristotelian syllogistic.