prepared by Rabbi Eliezer Chrysler of Kollel Iyun Hadaf
Rosh Kollel: Rabbi Mordecai Kornfeld
(a) According to Shmuel citing Levi, the third (Tefach) wall should be placed at ninety degrees to one of the other two walls (like Rav). What did they feel inclined to say in the Beis-Hamedrash?
(b) What does Rebbi Simon (or Rebbi Yehoshua ben Levi) say?
(c) A regular Tefach comprises four Etzba'os (finger-breadths). What is the difference between a regular Tefach and a Tefach Shochek?
(d) How far away from the existing wall is the Tefach-wall placed, and why is that?
(a) According to Rav Yehudah, the same ruling (of a third Tefach-wall) will apply if one has two existing walls that are (not adjacent, but) parallel. Where does one then place it?
(b) Rebbi Simon (or Rebbi Yehoshua ben Levi) disagrees. What does he say?
(c) Why, according to Rebbi Simon, is the Din by parallel walls more stringent than by adjacent ones?
(a) Besides the requirement that we discussed until Now, Rava also requires a Tzuras ha'Pesach. What is a 'Tzuras ha'Pesach'?
(b) According to the first interpretation, the Tzuras ha'Pesach must stretch across the entire length of the third wall. How is it arranged?
(c) The second interpretation of Rava's undisputed opinion maintains that the Tzuras ha'Pesach does not replace the Tefach-post, but is an alternative method of building the third wall. What is the third interpretation?
(d) Rav Ashi holds like the second explanation. What does Rav Kahana say?
(e) Like whom is the Halachah?
(a) In which regard does Rabah say that the validity of the third Tefach-wall applies to Shabbos, too? On what grounds does he say it?
(b) Will this 'Migo' apply the whole year round?
(a) In which regard does the Beraisa say that the walls of ...
1. ... a Sukah have the same leniencies as those of Shabbos?
2. ... a Sukah have leniencies that the walls of Shabbos do not?
(b) What Kashya does Abaye pose on Rabah's previous Halachah from there?
(c) We answer that the Beraisa is talking about Shabbos throughout the year (but not on Sukos). What problem do we have with this answer? What should the Beraisa then have added (regarding the Din of a Sukah on Shabbos)?
(d) We refute this Kashya, on the grounds that it would not be necessary to tell us that. Why not?
(a) Rava permits a Sukah whose walls consist a. of a Mavoy and the Lechi at the entrance, and b. of Pasei Bira'os (four Deyumdin, each of an Amah by an Amah). Why does he need to state both cases? Why would it not suffice to issue his ruling just in the case of ...
1. ... the Mavoy?
2. ... the Pasei Bira'os?
(b) And why does he also need to permit a Sukah of two walls and a Tefach even on Shabbos because of 'Migo'? Why would we not know that, from the reverse case (i.e. of walls that are valid on Sukos because they are valid on Shabbos [as we learned earlier])?
(a) According to the Tana Kama of the Beraisa, it is only the sunlight that shines through the Sechach that can invalidate the Sukah, but not the sunlight that shines through the walls. What does Rebbi Yoshi'ah say?
(b) How does he learn this from the Pasuk in Pekudei "v'Sakosa al ha'Aron es ha'Paroches"?
(c) What do the Rabanan learn from this Pasuk?
(d) We have already learned that Rebbi requires a Sukah to be at least four by four Amos, and that Rebbi Yehudah validates a Sukah that is higher than twenty Amos. What do they (as well as Rebbi Shimon, who requires at least three full walls, plus a fourth wall of one Tefach), have in common with Rebbi Yoshi'ah?
(a) Raban Gamliel, Beis Shamai, Rebbi Eliezer and Acherim too, subscribe to the same opinion. Beis Shamai invalidate a Sukah, if one's table is in the house. What does Raban Gamliel say about a Sukah on top of a wagon or a ship?
(b) What does Rebbi Eliezer say about a Sukah in the shape of a wigwam?
(c) Which other case does he include in this Halachah, and what is his reasoning for invalidating such a Sukah?
(d) What do the Chachamim say?
(a) What does Acherim say about a round Sukah?
(b) Rebbi Yochanan does not rule like Acherim. According to him, a round Sukah is Kasher, provided twenty-four people can sit round it. Like which Tana does he in fact, rule? What, in his opinion, are the minimum dimensions of a square Sukah?