Grammatical gaps: definition, typology and theory

Grammars are (metaphorically speaking) instructions for the correct use of languages. One might expect that grammars are complete, i.e., that they provide an appropriate solution for each utterance context. Interestingly, however, grammars seem to show gaps, which are caused by the fact that rules (or forms) in certain domains are missing completely or that individual rules contradict each other and that the resulting conflict prevents their application. Grammatical gaps, whose relevance for a ‘realistic’ theory of grammar was probably first pointed out by Marga Reis, have come into the focus of research in recent years. The present special issue collects papers on different kinds of gaps and shows how fruitful and important the investigation of grammatical gaps can prove to be.