REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 49
ERUVIN 49 & 50 - have been dedicated jointly by the Feldman family to the
memory of Hagaon Rav Yisroel Zev [ben Avrohom Tzvi] Gustman Ztz"l (Vilna-
(a) What is the Din of a courtyard that opens into two Mavu'os ...
(b) In the former case, under what circumstances will the residents of one
of the Muva'os be permitted to carry - in spite of the Chatzer that opens
- ... if they did not both make an Eruv?
- ... if they *did*?
(c) How will the residents of the Mavoy through which the residents of the
courtyard *are* accustomed to walk, be permitted to carry in their own
courtyard, in spite of the fact that they did not make an Eruv together?
(d) In which connection is Shmuel quoted as saying 'Kegon Zu, Kofin al
(a) Why does Shmuel invalidate the Eruv of someone who is fussy that his
bread should not be eaten by any of the participants?
(b) What were the men of Vardina known for?
(c) In which case will Beis Hillel, who normally validate an Eruv that is
placed in two receptacles, agree that it is Pasul?
(a) Why does Shmuel need to rule both by someone who is fussy about his
Eruv being eaten, and by someone who is fussy about placing *his* Eruv in
the same receptacle as the others', when both seem to stem from the fact
that it is not an 'Eruv'?
(b) How do we reconcile Shmuel, who invalidates the Eruv of someone who
places his Eruv in a separate receptacle, with his own ruling, exempting
the person in whose house the Eruv (consisting of bread that was collected
from each of the participants) is placed, from placing his bread?
(c) What did the Gemara initially think that Shmuel meant that prompted
(a) According to Shmuel, who holds 'Eruv Mishum Kinyan', why can one not
(b) What does Rabah hold in this matter?
(c) One difference between the two opinions is 'K'li'.
'Me'arvin bi'Ch'li mean?
(d) What are the other two differences?
(a) The Beraisa permits one person to place his own Eruv on behalf of the
five who are participating in an Eruv.
Answers to questions
Why do we not say that the Eruv
only acquires on *his* behalf (according to Shmuel) - but not on behalf of
the other participants? And why do we not say (according to Rabah) that
only *he* becomes a co-resident in the Chatzer, but not all the others on
whose behalf he is acting?
(b) What is the final ruling in this matter - regarding the middle
Chatzer combining with the two outer ones?
(a) What can a traveler do, as Shabbos enters, to enable him to walk two
thousand Amos until a certain point, and from there, another two thousand
Amos to his house - on Shabbos?
(b) How does he then measure this two thousand Amos, according to ...
(c) According to Rebbi Yehudah, why did Chazal institute the concept of an
Eruv using bread?
- ... Rebbi Chanina ben Antignos?
- ... the Chachamim?
(d) According to Rebbi Meir, why did they institute the concept of Eruv on
(a) Rav interprets the 'Lo Amar K'lum' in the Reisha of our Mishnah (when
he saw a tree and said 'Shevisasi Tachteha') to mean that he has nothing.
Why is that?
Rashi gives a second interpretation of 'Lo Amar K'lum' according to
Shmuel, which he then proceeds to discard.
(b) How does Shmuel explain 'Lo Amar K'lum' (according to Rashi's first
(c) What is the meaning of 've'Na'aseh Tachtav shel Ilan Chamar Gamal'?
What is it?
(a) Why does the Gemara not probe Shmuel's reason in Rebbi Meir (like it
does for Rav's)?
Answers to questions
(b) What are the two possible reasons for Rav?
(c) What is the difference between them?