Conclusion of Sugya קורה באלכסון
Quickly review the גמרא דף ח: “אמר רב כהנא בר תחליפא” until “איבעיא להו מהו להשתמש תחת הקורה
Review תוס’ “מניח
Questions:
Tosfos gives two answers.
What’s the difference between the two answers?
Learn ריטב”א – note how he answers Tosfos question.
https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=13
What is the difference between Tosfos and the Ritva answers?
Rava holds the Korah must be placed straight and not on an angle because a Korah is just considered a היכר and placing a Korah on an angle is not a היכר.
Major Question:
Tosfos תוס’ “מניח asked according to Rav Kahana how could it be permitted to carry along the border of the Korah even opposite the long wall as there are only two walls blocking in this part of the Mavui and need minimum of three walls to make it a reshus hayachid. Tosfos first answer is according to Rav Kahana Korah is Mechitza and therefore there really are three walls.
Rava explains his position that one must place the Korah on straight from the edge of the short wall and parallel to the opposite wall to the edge of the long wall because קורה משום היכר and if place the Korah on an angle its not a היכר
Why doesn’t Rava just simply say the reason is קורה משום היכר and therefore if place the Korah on an angle from the short side to the long side you will only have two walls?
According to Rava if one places the Korah on an angle from the edge of the short wall to the edge of the long wall would it be permitted to carry in the back part of the Mavui from the inside of the short wall?
See ביאור הלכה ס’ שס”ג סע’ ל “אינו מניח who brings a dispute between the Machatzits Hashekel and Pri Megadim regarding this.
https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=66
See מחצית השקל ס’ שס”ג ס”ק ל for his Chidush and the פרי מגדים משבצות זהב ס”ק כא who argues and based on his position answers the major question we asked above.
Major Question:
How could the Machatzitz Hashekel permit carrying in the back part of the Mavui Tosfos clearly says if one can not carry opposite the long wall than its considered outside the mavui and the korah is considered placed outside the mavui therefore the Korah should not be able to allow one to carry inside any part of the mavui?
Learn the גמרא דף ח: “איבעיא להו מהו להשתמש תחת הקורה until “איתיביה (bottom of the Amud)
Question:
Why is it definitely prohibited to carry in the area opposite the Lechi?
Learn תוס’ “הכל (first half of Tosfos until “דהא אביי )
The Rishonim give other explanations.
Learn רשב”א דף ח: “אמר רב חסדא
Learn תוס’ ריד דף ט for a chidush in how Lechi operates as a Mechitza
Learn קרן אורה דף ט. “תני ר’ זכאי who adds an understanding in the operation of Lechi as a Mechitza