Every world can see a Sahlqvist world. In I. Hodkinson and Y. Venema, editors, Advances in Modal Logic - Volume 6, pages 69-85. King"s College Publications, 2006. (with Ph. Balbiani and V. Shehtman)
Авторы: Бальбиани Ф., Шапировский И.Б., Шехтман В.Б. |