Rabbi Baruch Bodenheim: Monday Night Gemara Shiur Bava Metzia 30B to 31A: Mishna Aizo Hee Aveida and Gemara Utoo

We will be be”H be covering alot of ground this week.
Learn Mishna 30b & Gemara until two dots on 31a.  Learn Last 3 lines of Tosfos 25b “V’im” & first half of the Rosh on Mishna 25b “Matza”
Questions; when Braisa 31a says if something is placed for 3 days one can assume its lost does that apply to items placed near a fence as well?  See First Rashba 31a.  What is the conclusion of the gemara in regards to Hashovas aveida on land? Ritva “Mahu”
Point to ponder; According to Rava when the torah includes Hoshavas aveida on land is that just for the prohibition of “Lo suchal Lihisalem” or also for the Mitzva of ” Hashev Teshiveim”?