EFFICIENT FULL HIGHER-ORDER UNIFICATION

被引：1
|
作者：
Vukmirovic, Petar [1 ]
Bentkamp, Alexander [1 ]
Nummelin, Visa [1 ]
机构：
[1] Vrije Univ Amsterdam, De Boelelaan 1111, NL-1081 HV Amsterdam, Netherlands
来源：
LOGICAL METHODS IN COMPUTER SCIENCE | 2021年 / 17卷 / 04期
基金：
欧洲研究理事会;
关键词：
unification; higher-order logic; theorem proving; term rewriting; indexing data structures; SET;
D O I：
10.46298/LMCS-17(4:18)2021
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We developed a procedure to enumerate complete sets of higher-order unifiers based on work by Jensen and Pietrzykowski. Our procedure removes many redundant unifiers by carefully restricting the search space and tightly integrating decision procedures for fragments that admit a finite complete set of unifiers. We identify a new such fragment and describe a procedure for computing its unifiers. Our unification procedure, together with new higher-order term indexing data structures, is implemented in the Zipperposition theorem prover. Experimental evaluation shows a clear advantage over Jensen and Pietrzykowski's procedure.
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页数：31
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