REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 81
ERUVIN 81 - sponsored by a generous grant from an anonymous donor. Kollel Iyun Hadaf is indebted to him for his encouragement and support and prays that Hashem will repay him in kind.
(a) We have already learnt in 'ba'Kol Me'arvin' that anything can be used
for Eruvei Techumin except for water and salt.
Why then, according to
Rabah, does the Gemara find it necessary to repeat it here by Eruvei
(b) The Beraisa states 'ba'Kol Me'arvin Eruvei Chatzeros, u'va'Kol
Mishtatfin Shitufei Mavu'os, ve'Lo Amru Le'arev be'Pas Ela be'Chatzer
Bilevad'. How does this Beraisa contradict Rabah's contention?
(c) The Gemara therefore concludes that 'ba'Kol Me'arvin' refers to bread.
Who is the author of the Beraisa, and what is it teaching us?
(a) Why does Rebbi Yehoshua require whole loaves only?
(b) Will he permit all the residents to give pieces of bread?
(a) If Challah was removed from the dough, Rebbi Yonoson ben Shaul rules
that the Eruv is nevertheless Kasher - according to Rebbi Yehoshua
(although the loaf is not whole).
How do we reconcile this with the
Beraisa which invalidates an Eruv from which Chalah was taken?
(b) He also permits an Eruv from which a Kedei Dimu'a was taken.
does this mean?
(c) According to Rebbi Yehoshua, will a loaf that is broken in two be
eligible for an Eruv, if it is joined together by a splinter of wood?
(a) Is a loaf of bread eligible if it is made of ...
(b) Bread made of lentils is eligible for an Eruv Chatzeros.
- ... rice?
- ... millet?
Why did the
Gemara think that it iss not?
(c) On which two grounds does the Gemara refute that?
(d) Each of these explanations has support in a Pasuk in Yechezkel.
the loaf in the following Pasuk contained many kinds of grain, what two
possible things might Hashem have meant, when he said to Yechezkel
"ve'Ugas *Se'orim* Te'achlenah"?
(a) Rebbi Eliezer allows a resident of a Mavoy to give a Ma'ah to a store-
keeper or to a baker, to acquire for him his portion in the Shituf
Mavu'os. The Chachamim disagree with him.
Answers to questions
(b) Will it make any difference if the store-keeper specifically includes
him in the Eruv together with the other residents?
(c) What does the Tana mean when he adds 'u'Modim be'Sha'ar Kol Adam
she'Zachu Lo Ma'osav'?
(d) What is the Tana's reason for this?
How can Rebbi Eliezer render the Eruv valid for someone who has merely
given money for it? Does he not agree that payment of money is not a
(a) On which four days in the year is the butcher obligated to Shecht an
animal, irrespective of its value, even if only one person has purchased a
part of it?
Why did the Rabbanan institute that money should not be Koneh?
(b) Consequently, says the Mishnah in Chulin, if the animal dies before
the butcher manages to Shecht it, the purchaser has lost his money. What
is the problem with Rav Huna who establishes the Reisha (which places the
entire loss, should the animal die, on the purchaser) when he actually
made a Kinyan Meshichah on the animal (i.e. making it walk)?
(c) So the Gemara establishes the Mishnah when the butcher was Mezakeh the
purchaser through a third person.
What does this mean? Why would there
then be a difference between those four days and any other day of the
(d) Rebbi Yochanan establishes the Mishnah when he neither made a Kinyan
Meshichah, nor was the butcher Mezakeh the animal to the purchaser.
how does the purchaser acquire it?
Shmuel says that if, instead of giving the store-keeper *money*, he gives
him *a vessel*, he will acquire a part of the Eruv. What does this mean?
(a) Rav Yehudah quoting Shmuel, rules like Rebbi Yehudah throughout
Eruvin. Why will that not incorporate his opinion (in Perek Kol Gagos)
that a Mavoy whose' Koros' broke on Shabbos, remains permitted for that
Answers to questions
(b) According to Rebbi Yehoshua ben Levi, wherever the Tana says (with
regard to the opinion of Rebbi Yehudah) 'Eimasai' or 'Bameh Devarim
Amurim', his intention is to explain, not to argue.
What is now the
problem Shmuel's statement?
(c) What is the Gemara's solution?
(d) Rav Chisda deduces from the Mishnah above 'Nisosfu Aleihen (Diyurin)
Mosif, u'Mezakeh ve'Tzarich le'Hodi'a', that the Rabbanan disagree with
How will Rebbi Yehoshua ben Levi accommodate that Mishnah?