Where does the practice of reading for the Torah on Rosh Chodesh come from and how crucial is it? Would skipping it (due to lack of easily accessible Sefer Torah) constitute a serious transgression? ...
From the fact that Levi was in Bavel, Rav derived that R' Efes passed away. He derived it like this: After Rebbi passed away, R' Efes took over Rebbi's position. Rav Chanina was equal (or greater) ...