Studies on brutal contraction and severe withdrawal

Garapa, M.; Fermé, E.; Reis, M. D. L.

http://hdl.handle.net/10400.13/3443

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Authors

Garapa, M.

Fermé, E.

Reis, M. D. L.

Abstract(s)

In this paper we present an axiomatic characterization for brutal contractions. Then we consider the particular case of the brutal contractions that are based on a bounded ensconcement and also the class of severe withdrawals which are based on bounded epis temic entrenchment relations that are defined by means of bounded ensconcements (using the procedure proposed by Mary-Anne Williams). We present axiomatic characterizations for each one of those classes of functions and investigate the interrelation among them.