Families without minimal numberings

Abeshev, K. Sh.Badaev, S. A.Mustafa, M.2015-12-252015-12-252014Abeshev K. Sh., Badaev S. A., Mustafa M.; 2014; Families without minimal numberingshttp://nur.nu.edu.kz/handle/123456789/969enResearch Subject Categories::MATHEMATICScomputable numberingErshov hierarchyminimal numberingFamilies without minimal numberingsArticle