Gemara:

Chagiga,  Keritut,  Shabbat,  Sukkah 

Collections: Rabbi Rosensweig Itamar Columbia Shabbat

Description

Columbia shiur: overview of מלאכה שאינה צריכה לגופה; definition of מלשצל"ג, Rashi, Tosafot, Tosafot Rid; severity of מלשצל"ג in contrast to other isurim- RA"E with respect to amirah le'akum; R. Yehuda's position and instances of שלא לצורך כלל; Davar Sheino Mitkaven and Pesik Reisha; scope of the machloket, including cases of כלאים, צרעת, הדס and why these are contingent on ר"י ור"ש; Aruch's position ; different understandings of psik reisha and the significance of nicha leih; relationship between shabbat and other areas of halakha.