This paper develops a formal theory of non-monotonic consequence which differs from most extant theories in that it assumes Contraposition as a basic principle of defeasible reasoning. We define a minimal logic that combines Contraposition with three uncontroversial inference rules, and we prove some key results that characterize this logic and its possible extensions.

Non-Monotonicity and Contraposition

Vincenzo Crupi
;
Tiziano Dalmonte;Andrea Iacona
2025-01-01

Abstract

This paper develops a formal theory of non-monotonic consequence which differs from most extant theories in that it assumes Contraposition as a basic principle of defeasible reasoning. We define a minimal logic that combines Contraposition with three uncontroversial inference rules, and we prove some key results that characterize this logic and its possible extensions.
2025
34
27
46
https://link.springer.com/article/10.1007/s10849-024-09425-5
non-monotonic logic, conditionals, consequence, contraposition, evidential
Vincenzo Crupi; Tiziano Dalmonte; Andrea Iacona
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2077230
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