English

Where Fail-Safe Default Logics Fail

Artificial Intelligence 2021-04-12 v1 Logic in Computer Science

Abstract

Reiter's original definition of default logic allows for the application of a default that contradicts a previously applied one. We call failure this condition. The possibility of generating failures has been in the past considered as a semantical problem, and variants have been proposed to solve it. We show that it is instead a computational feature that is needed to encode some domains into default logic.

Keywords

Cite

@article{arxiv.cs/0403032,
  title  = {Where Fail-Safe Default Logics Fail},
  author = {Paolo Liberatore},
  journal= {arXiv preprint arXiv:cs/0403032},
  year   = {2021}
}