Gemara:

Shabbat 

Collections: Rabbi Rosensweig Itamar Columbia Shabbat

Description

Columbia Shiur: Evidence of a general Issur Melacha through Melachot which don't fall under a specific av: The different sources for issur melacha on shabbat; Characterizations of the issur melacha of Yom Tov as a Laav Shebichlalos.