Ryota Akiyoshi
Paper was published in the journal, Archive for Mathematical Logic (Springer).
An extension of the omega-rule Ryota Akihoshi, Grigori Mints, Archive for Mathematical Logic, Volume 55, Issue 3, pp 593-603
An extension of the omega-rule Ryota Akihoshi, Grigori Mints, Archive for Mathematical Logic, Volume 55, Issue 3, pp 593-603