Difference between revisions of "LP-rule"

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An LD-rule ''X'' <math>\prec</math> ''Y'' states that category ''X'' has to precede category ''Y''. Formally, it is a well-formedness condition for [[local tree|local trees]]: It licenses all local trees containing a daughter labelled ''X'' and a daughter labelled  ''Y_1'', so that ''X'' precedes ''Y''.
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LP-rules restrict the set of local trees admitted by an ID-rule. An LD-rule ''X'' <math>\prec</math> ''Y'' states that category ''X'' has to precede category ''Y''. It licenses all local trees containing a daughter labelled ''X'' and a daughter labelled  ''Y'', with ''X'' preceding ''Y''.
  
 
===See also===
 
===See also===

Revision as of 11:56, 24 September 2007

LP-rules restrict the set of local trees admitted by an ID-rule. An LD-rule X <math>\prec</math> Y states that category X has to precede category Y. It licenses all local trees containing a daughter labelled X and a daughter labelled Y, with X preceding Y.

See also

Comment

LD-rules were first introduced in Generalized Phrase Structure Grammar.

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