The Revision Theory of Truth

In this rigorous investigation into the logic of truth Anil Gupta and
Nuel Belnap explain how the concept of truth works in both ordinary and pathological
contexts. The latter include, for instance, contexts that generate Liar Paradox.
Their central claim is that truth is a circular concept. In support of this claim
they provide a widely applicable theory (the "revision theory") of circular
concepts. Under the revision theory, when truth is seen as circular both its
ordinary features and its pathological features fall into a simple understandable
pattern.

The Revision Theory of Truth is
unique in placing truth in the context of a general theory of definitions. This
theory makes sense of arbitrary systems of mutually interdependent concepts, of
which circular concepts, such as truth, are but a special case.