This web-site is designed to give users a very general "introduction to Ethics." The materials offer both historical and thematic perspectives on the subject. Key representatives of the history of ethics are presented and major ethical theories are analyzed and critiqued.
A free tutorial to accompany the fifth edition of The Power of Logic by Frances Howard-Snyder, Daniel Howard-Snyder, and Ryan Wasserman. This internet-based study guide provides you with numerous ways to check your understanding of logic and to independently check your work and receive feedback.
"Hosts interactive logic software used for teaching introductory formal logic. The Daemon Proof Checker checks proofs and can provide hints for students attempting to construct proofs in a natural deduction system for sentential (propositional) and first-order predicate (quantifier) logic. The Quizmaster provides a variety of exercises, from questions about basic concepts such as validity, to wff construction and translation, to proofs, truth tables, and countermodels. The system and exercises are based on Logic Primer (MIT Press, 2000) but the exercises are also suitable for use with other texts, such as E.J. Lemmon's Beginning Logic."