Philosophy of Logic

Jay VerLinden's resource offering reviews and tests on important concepts in formal logic.

Paper by Reinhard Muskens on logical systems in which the principle of bivalence and the principle of non-contradiction fail.

Subtitled a "Kantian-Friesian approach", an article by Kelley L. Ross. A historical survey of the problem of universals.

Article by Paul E. Oppenheimer and Edward N. Zalta which presents a formalization of the ontological argument.

Presents well-known paradoxes, including liar, double liar, barber, and lazy-bones paradox. Also contains sophisms, and short paradoxical sentences from life.

Article in the Stanford Encyclopaedia of Philosophy, by Roy Sorensen.

In this article Axel Mueller applies some reflections upon Goodman's paradox to the problem of natural kinds.