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

Gemara:

Rosh Hashana,  Sanhedrin 

Halacha:

Jewish Calendar 

Collections: Rabbi Torczyner Minchas Chinuch

References: Rosh Hashana: 20a ,  Rosh Hashana: 24a ,  Sanhedrin: 11b ,  Berachot: 63b  

Description

Minchat Chinuch's analysis of the nature of the mitzvah of Kiddush haChodesh, and the question of whether we need witnesses when the previous month is malei (30 days).