Venue: YU Torah MiTzion Beit Midrash Zichron Dov YU Torah MiTzion Beit Midrash Zichron Dov

Gemara:

Rosh Hashana,  Sanhedrin 

Halacha:

Beit Din,  Jewish Calendar 

Machshava:

Tzom Gedalia 

Collections: Rabbi Torczyner Minchas Chinuch

References: Rosh Hashana: 24a ,  Rosh Hashana: 31b ,  Sanhedrin: 10b  

Description

Three small topics within Kiddush haChodesh and Ibbur haShanah, as explained in the Minchas Chinuch: How we proceed from 3 to 5 to 7 dayyanim; The permission of the Nasi; The credibility of the single shaliach sent by beis din, as a witness to their decision