Granular Reasoning and Decision System’s Decomposition

摘要

In order to make further researches on decisionlogic, a generalized form of decision reasoning calledgranular reasoning is introduced, which is induced by theinclusion relation over granules, and is connected withgranule’s operations. The investigations on it shows thatgranular reasoning not only covers a wider range includingdecision reasoning, but also satisfies the rules of deductionin classical logic. Thus, granular reasoning can be taken as afoundation to support decision reasoning. On the other hand,granular reasoning has close links with a decision system.Based on granular reasoning, a decision system can bedivided into sub-decision systems. Consequently, as a specialform of granular reasoning, decision reasoning defined in adecision system becomes to rely on sub-decision systems.This makes decision reasoning easier.