弱逼近元在完备格中有许多重要的性质，对于刻划连续格、完全分配格起着重要的作用。
The weak approximating elements of complete lattices have a few significant properties, and play an important role in the characterizations of continuous lattices and completely distributive lattices.
本文对完全分配格的内蕴式刻划给出了一个简洁的直接证明，并给出了内蕴式刻划的若干应用。
In the paper, we present a direct proof of Raney s intrinsic characterization of completely distributive lattices and give some applications of the intrinsic characterization.
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