主しゅ辞じ素そ性せい規き約やく

noun

head feature convention; HFC

A principle in phrase structure grammar (such as HPSG) requiring that the head daughter's features be shared with the mother node. Used in formal syntax.

• 主しゅ辞じ素そ性せい規き約やくは、句く構こう造ぞう文ぶん法ぽうにおいて主しゅ要よう部ぶの素そ性せいが句く全ぜん体たいに継けい承しょうされることを保ほ証しょうする。

  The Head Feature Convention ensures that the features of the head are inherited by the whole phrase in phrase structure grammar.