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‘è–Ú�FGeneralized R-Calculus
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Inference system for belief revision, one of the most efficient tools, plays a significant role in the description of the process of software evolution and scientific discovery. This topic presents a generalization of the local inference system R-calculus by allowing the formula set Gamma in a R-configuration to be inconsistent. Four sets of rules, i.e. GR-axioms, GR-logical connective symbol rules, GR-quantifier symbol rules, and GR-cut rules, are analogously defined in this paper, on the basis of the R-calculus language. Moreover, this generalized R-calculus is proved sound and complete.



 
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