This paper proves, in a constructive manner, that the general n-dimensional hierarchical fuzzy systems are universal approximators. It is an extension of the results in [L.X. Wang, Fuzzy Sets and Systems 93 (1998) 223-230]. An upper bound of approximation error is also given. (C) 2000 Elsevier Science Inc. All rights reserved. [References: 12]
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机译：本文以建设性的方式证明了一般的n维分层模糊系统是通用逼近器。它是[L.X. Wang，Fuzzy Sets and Systems 93（1998）223-230]。还给出了近似误差的上限。 （C）2000 Elsevier Science Inc.保留所有权利。 [参考：12]
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