Rabbi Baruch Bodenheim: Gemara Shabbos: Perek Kirah: Muktza – יום שלישי, Tishrei 11 דף מז (09/22/26)
Topic: בנין וסתירה בכלים
Learn גמרא דף מז. “לוי בר שמואל אשכחיה (thirteen lines from bottom of the Amud) until דף מז: “בי רב חמא
Question:
How is it possible to have such extreme positions of whether assembling a portable bed is either permitted or prohibited from the Torah?
Learn תוס דף מז: “רשב”ג
How did Tosfos answer his question that there is no violation of בנין וסתירה בכלים ?
Learn מלא הרועים (in back of the Gemara)
https://hebrewbooks.org/
Learn מאירי for an explanation of the different scenarios of what is permitted and what is prohibited.
https://hebrewbooks.org/
