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Linguistics, Logic and Finite Trees

By Wilfried Meyer-Viol and Patrick Blackburn

Abstract

A modal logic is developed to deal with finite ordered binary trees as they are used in (computational) linguistics. A modal language is introduced with operators for the `mother of', `first daughter of' and `second daughter of' relations together with their transitive reflexive closures. The relevant class of tree models is defined and three linguistic applications of this language are discussed: context free grammars, command relations, and trees decorated with feature structures. An axiomatic proof system is given for which completeness is shown with respect to the class of finite ordered binary trees. A number of decidability results follow.Articl

Topics: PHI
Year: 1994
OAI identifier: oai:sas-space.sas.ac.uk:869
Provided by: SAS-SPACE

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