证明了对于一个给定的非空集合X,可以在RCL(X)(X上的推理闭包算子的全体)、R IN(X)(X上的推理内部算子的全体)、ROU(X)(X上的推理外部算子的全体)、RB(X)(X上的推理边界算子的全体)上定义适当的序关系,使它们与(RCS(X),真包含)序同构,其中RCS(X)是给定集合X上的推理闭包系统的全体.
It is proved that,for a given non-empty set X,appropriate order relations can be defined on RCL(X)(the set of all reasoning closure operators on X),RIN(X)(the set of all reasoning interior operators on X),ROU(X)(the set of all reasoning external operators on X),RB(X)(the set of all reasoning boundary operators on X),so that they are isomorphic with the complete lattice(RCS(X),lohtain in ),where RCS(X) is the set of all reasoning closure systems on X.