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THOUGHTS ON THE DAILY DAF
brought to you by Kollel Iyun Hadaf of Har Nof
Rosh Kollel: Rav Mordecai Kornfeld
Ask A Question about the Daf
1) "PI TIKRAH" FOR A SUKAH
QUESTION: Abaye and Rava argue concerning the status of an Achsadrah on
which Sechach was placed. Rashi (93a) explains that the Achsadrah has two
walls. In order to by a valid Sukah, there must be at least three walls.
Abaye says that we apply the principle of Pi Tikrah Yored v'Sosem, and
thus this structure is a valid Sukah. Rava says that we do not apply the
principle of Pi Tikrah here. The Gemara suggests that the argument of
Abaye and Rava is the same as that of Rav and Shmuel, who argue about the
principle of Pi Tikrah.
How can the Gemara suggest that the argument between Abaye and Rava is
connected to the argument between Rav and Shmuel? In the case over which
they argue there are already two walls, and, according to Rashi, whenever
there is at least one wall, Shmuel agrees that Pi Tikrah works!
(a) The RITVA explains as follows. The Gemara eventually concludes that it
is less likely for Pi Tikrah to work for an Achsadrah with Sechach on top,
because the boards on top of the Achsadrah were not made l'Shem Sukah.
Even though the Sukah does not have to be made Lishmah, *Pi Tikrah* will
not be applicable unless the boards were at least placed there l'Shem
The Ritva suggests that the Gemara knew all along that Pi Tikrah does not
apply when the boards were not placed there l'Shem Sukah. Therefore even
if there are already two Mechitzos, the opinion (Shmuel) who says that Pi
Tikrah does not work when there are no Mechitzos will maintain here that
Pi Tikrah does not work. However, the Gemara thought that the opinions
(Rav) who apply the rule of Pi Tikrah even without any Mechitzos, would
apply Pi Tikrah even when the Mechitzos were not made l'Shem Sukah at all.
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