On logically defined recognizable tree languages

被引:0
|
作者
Ésik, Z
Weil, P
机构
[1] Univ Szeged, Dept Comp Sci, Szeged, Hungary
[2] CNRS, LaBRI, F-75700 Paris, France
[3] Univ Bordeaux 1, F-33405 Talence, France
关键词
D O I
暂无
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
We provide an algebraic characterization of the expressive power of various naturally defined logics on finite trees. These logics are described in terms of Lindstrom quantifiers, and particular cases include first-order logic and modular logic. The algebraic characterization we give is expressed in terms of a new algebraic structure, finitary preclones, and uses a generalization of the block product operation.
引用
收藏
页码:195 / 207
页数:13
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