On the main metarule of the Sanskrit grammar of Pāṇini

The subject of this study is the most famous and frequently used metarule Sanskrit grammar "Aṣṭādhyāyī" compiled by ancient Indian linguist Pāṇini. This called "bahiraṅgaparibhāṣā" serves to determine correct sequence grammatical operations prescribed in "Aṣṭādhyāyī". material are various interpretation bahiraṅgaparibhāṣā commentaries on "Aṣṭādhyāyī", as well collections metarules grammarians. purpose work acquaint Russian-speaking reader with important interpretative tool Panini — bahiraṅgaparibhāṣā, history literature. research method a comparative analysis primary sources containing interpretations bahiraṅgaparibhāṣā. For first time Russian-language literature, detailed has been made. origin its grammarians studied. signs acquaintance investigated. It shown that, despite widespread use metarule, mechanism application was not explicitly described until XVIII century AD, when problem completely solved grammarian Nāgojībhaṭṭa his "Paribhāṣenduśekhara". established that one main achievements strict definition concepts antaraṅga bahiraṅga elements statement