By using theory of enveloping semigroup, we give a simple proof of an important theorem concerning proximity relations.
运用包络半群的理论，对接近关系中一个重要定理给出了一个简单证明。
By using theory of enveloping semigroup, we give a simple proof of an important theorem concerning proximity relations.
运用包络半群的理论，对接近关系中一个重要定理给出了一个简单证明。
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