Pesachim
מרצה Title תקציר סידרה
Harav Mosheh Lichtenstein Ein Safek Motzi Mi-ydei Vadai (9a) The mishna in Pesachim 9a states that no additional precautionary steps are required after the conclusion of bedikat chametz, since the house is considered chametz-free and the possibility of a mischievous rodent coming in from the cold with all of the neighborhood chametz need not be taken into account. Masekhtot - Iyun
Dr. Moshe Koppel The Principle of Kavu'a The principle of kavu'a tells us that just as a group is of indeterminate nature, so too, an unspecified member of said group is regarded as of indeterminate nature. Masekhtot - Iyun
Rav Ezra Bick Intro to Issurei Hana'a – (Masekhet Pesachim Second Perek) Masekhtot - Iyun
Rav Yair Kahn Places Exempt from Bedika (8a) Bedika as a function of the presence of chametz Masekhtot - Iyun
Rav Moshe Taragin The Handling of Impure Teruma The gemara in Shabbat (25a) rules that it is a mitzva to burn "teruma" which has become tamei. Talmudic Methodology
Rav Moshe Taragin The Prohibition of Working on Erev Pesach The Mishna at the beginning of the fourth perek of Pesachim describes issur of performing melakha (labor) after chatzot (noon) on Erev Pesach. Talmudic Methodology