Conclusion of Sugya: חבוט ולבוד
Very quickly review the גמרא דף ט. “רב אשי אמר (nine lines from top of the Amud) until “תני ר’ זכאי (fourteen lines from top of the Amud)
The ר”ן סוכה דף ט. דפי הריף (few lines before דברי המתחיל “איתמר) says we can not combine the two halachick concepts of דופן עקומה and לבוד.
https://hebrewbooks.org/pdfpager.aspx?req=14319&st=&pgnum=600
Major Question:
According to the Ran how can we combine Lavud and Chavut in our case of the Gemara?
(Extra- see שו”ת רע”א ח”א ס’ יב who answers this question)
https://hebrewbooks.org/pdfpager.aspx?req=1161&pgnum=20
The Ritva & Rashba clearly established the case of our gemara is where the diagonal line from the wall of the Mavui to the Korah is three tefachim or more.
Is there a possible explanation as to why both concepts of חבוט and לבוד are needed to connect the Korah to the walls of the Mavui even when the diagonal is less than three?
Learn ח’ ר’ חיים ה’ סוכה פרק ה הלכה כא (attached in this email – starting from paragraph on bottom of right column)
Note how Reb Chaim explains
1) Why Chavut and Lavud is needed even though the diagnol line between the Korah and the walls of the Mavui is less then three?
2) A new answer to question of Tosfos as to why the Korah can not be higher then three tefachim as Chavut is not limited to within three tefachim.
3) Whether the shapes of the pegs holding up the Korah make a difference
Learn the גמרא דף ט.”תני ר’ זכאי (fourteen lines from top of the Amud) until “א’ל רב הונא בריה דרבי יהושע (twelve lines from bottom of the Amud)
https://images.shulcloud.com/13521/uploads/YNB-PTI/shiurim/rabbibodenheim/ravchaimeruvn9a.jpg
