Original Article


, Volume 75, Issue 2, pp 223-236

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Basic and Refined Nomic Truth Approximation by Evidence-Guided Belief Revision in AGM-Terms

  • Theo A. F. KuipersAffiliated withDepartment of Theoretical Philosophy, University of Groningen Email author 


Straightforward theory revision, taking into account as effectively as possible the established nomic possibilities and, on their basis induced empirical laws, is conducive for (unstratified) nomic truth approximation. The question this paper asks is: is it possible to reconstruct the relevant theory revision steps, on the basis of incoming evidence, in AGM-terms? A positive answer will be given in two rounds, first for the case in which the initial theory is compatible with the established empirical laws, then for the case in which it is incompatible with at least one such a law.