REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 91
ERUVIN 91 - has been dedicated to the memory of Dr. Simcha Bekelnitzky
(Simcha Gedalya ben Shraga Feibush) of Queens N.Y. by his wife and
daughters on his first Yarzeit (7 Av).
Well known in the community for his
Chesed and Tzedakah,
he will long be remembered.
(a) Rav Yehudah explains that, according to Rebbi Meir, all roofs are an
independent Reshus, so are Chatzeros and so are enclosures.
mean that Reuven may carry from his roof to Shimon's without an Eruv?
(b) Does this also apply to the residents of one Chatzer or enclosure
carrying to another?
(c) When, according to Rebbi Meir, do different owners of the same Reshus
require an Eruv?
(d) He forbids however, carrying from a roof to a Chatzer because of a
decree of a pile in the Reshus ha'Rabim.
How do we know that he also
forbids carrying from a courtyard to an enclosure, and what is his reason
(a) According to the Chachamim, says Rav Yehudah, roofs and courtyards are
Does this mean that there is no division of ownership and
that one may carry from Reuven's roof to Shimon's or from Reuven's roof to
(b) What then, *do* they permit?
(c) Why may one carry from a roof to a public Chatzer? Why is it not like
carrying from the house to the Chatzer?
(d) What does Rebbi Shimon hold, according to Rav Yehudah?
(a) 'We learnt a Beraisa in support of Rav' (according to the Chachamim).
What does the Beraisa say?
(b) What proof does the Gemara bring from Rebbi in a Beraisa for Rav
Yehudah's interpretation of Rebbi Shimon?
(c) Why did the Rabbanan reject Rebbi Yehudah's proof that the Halachah is
like Rebbi Shimon, from his testimony that they once carried a Sefer-Torah
from a courtyard to an enclosure via a roof and a second Chatzer?
(a) Shmuel and Rebbi Yochanan rule like Rebbi Shimon completely; Rav
restricts the ruling to a case where the neighboring courtyards did not
make independent Eruvin, but not if they did.
Answers to questions
Why is that?
(b) Why are Shmuel and Rebbi Yochanan not concerned about this?
(c) The Beraisa, explaining Rebbi Shimon, specifically forbids vessels
that were in the house when Shabbos entered, to be moved from Chatzer to
How will Rav, who establishes Rebbi Shimon when no Eruv was
made, explain this Beraisa? How do the vessels get from the house to the
(a) How will Shmuel and Rebbi Yochanan reconcile their opinion with the
Beraisa, which considers a roof, a courtyard, a porch and a Mirpeset one
Reshus (to carry from one to another) when they did *not* make an Eruv,
but not when they *did* (like Rav)?
(b) What is the proof for this from the fact that the Beraisa does not
mention a Karfaf and a Mavoy together with the other cases?
(a) In a case of five courtyards which open both into each other and into
a Mavoy, and they forgot to make an Eruv, the Rabbanan forbid carrying
from the Chatzer to the Mavoy and vice-versa, under any circumstances;
Rebbi Shimon permits carrying the vessels of the Chatzer in the Mavoy.
What inference could we make that will leave us with a Kashya on Shmuel
and Rebbi Yochanan?
(b) How do they first answer the Kashya? Then why does the Beraisa use the
Lashon 'Lo Ervu', implying finality?
(c) And what is now the significance of Rebbi Shimon's words '*Kol Z'man
she'Hein Shel Rabim* ve'Shachachu ... Gag ve'Chatzer ... Reshus Achas
(d) The Gemara gives an alternative answer: 'Rebbi Shimon le'Divreihem
What is he saying to them?
(a) What do the Rabbanan reply to Rebbi Shimon's suggestion?
Answers to questions
(b) The Rabbanan's final words are 'u've'Mavoy Asur'.
constitute a proof for Rebbi Zeira, who says in Shabbos in the name of
Rav, that in a Mavoy which did not make a Shituf, carrying is restricted
to four Amos?
(c) In that case, this is the same as the Reisha, where they have already
taught that carrying from the Chatzer to the Mavoy is prohibited? Why do
they need to teach the same thing twice?