There is a wealth of information on the Web
concerning the introduction to logic.
More specialized links can be found at these excellent sites:
Also, philosophy search engines are useful for finding specific persons, concepts, and theories. They are also accessible from the homepage.
GENERAL LOGIC TEXTS AND TUTORIALS
Tutorial in Critical Reasoning
An interactive tutorial for
critical thinking, including
arguments, the analysis of arguments, and fallacies from San Jose State
A streamlined online text on propositional and predicate
logic. without metatheory, by Colin Allen and Michael Hand, MIT Press.
Propositional and predicate calculus applets with documentation and download.
The use of rhetoric and persuasion, including arguments, analogy, and basic deductive and inductive reasoning, by Robert Huber, University of Vermont.
A syllogistic machine, programmed using Java Script--also see the first part of his logic text, under construction for some time, with interactive logic exercises.
Learning traditional logic on your own, including immediate inferences, syllogisms, fallacies, and introductory symbolic logic, with exercises, tests, and answers, San José State University.
Extensive list with brief descriptions and examples of common formal and informal fallacies, University of Alberta.
Online definitions and interactive quizzes, an outstanding site by Gary N. Curtis.
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