2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/151256We present a metagrammatical formalism, {\em generic rules}, to give a default interpretation to grammar rules. Our formalism introduces a process of {\em dynamic binding} interfacing the level of pure grammatical knowledge representation and the parsing level. We present an approach to non-constituent coordination within categorial grammars, and reformulate it as a generic rule. This reformulation is context-free parsable and reduces drastically the search space associated to the parsing task for such phenomena.latex2e, 12 pages, uses tree-dvips.sty. Appeared in IWPT'95Computation and Languagetext