Severe Withdrawal (and Recovery)

@article{Rott1999SevereW,
  title={Severe Withdrawal (and Recovery)},
  author={Hans Rott and Maurice Pagnucco},
  journal={Journal of Philosophical Logic},
  year={1999},
  volume={28},
  pages={501-547}
}
The problem of how to remove information from an agent's stock of beliefs is of paramount concern in the belief change literature. An inquiring agent may remove beliefs for a variety of reasons: a belief may be called into doubt or the agent may simply wish to entertain other possibilities. In the prominent AGM framework for belief change, upon which the work here is based, one of the three central operations, contraction, addresses this concern (the other two deal with the incorporation of new… 
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