REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 3
ERUVIN 3, - dedicated to the memory of Sarah Dvosya bas Rav
Mordechai (Feldman) of Milwaukee by her children.
(a) What are the 'Chamesh Amaltera'os shel Milah' referred to in Midos?
Where were they situated?
(b) The Gemara asks that, according to Rav (quoting a Mishnah) in the
Rabbanan, who learn the specifications of a Mavuy from the Heichal, an
Amaltera (which means a cornice) should not help to render it Kasher.
is the Gemara asking on Rav?
(c) The Mishnah in Midos is talking about the *Ulam*, so how can we ask from
the *Heichal* on the Rabbanan?
(d) We will learn later in a Mishnah that a Koreh which is too weak to hold
a brick is *not* Kasher for a Mavoy. There are however, times, when it *is*.
When is that?
(a) How does Rav answer the Kashya from the Beraisa on him (see 1b)?
(b) Rav Nachman bar Yitzchak explains that, if not for Rav's interpretation
of the Mishnah in Midos (quoted on Daf 2a), there would be no Kashya in the
first place. Rav Nachman bar Yitzchak accepts the latter Beraisa of
How does he interpret the Mishnah in Midos (which
connects the Rabbanan's opinion on the height of a Mavoy, with the Heichal)?
(c) Why, according to him, is a Mavoy that is higher than twenty Amos,
(d) Seeing as Rebbi Yehudah and the Rabbanan argue over whether one needs to
see the beam at a glance, why do they need to repeat their dispute by a
Sucah that is taller than twenty Amos (according to Rabah, who explains
their Machlokes by Sucah in that way).
(a) Some explain Amaltera to mean 'patterned in the shape of birds'-nests',
others, to mean 'long cedar poles'.
What is their Machlokes?
(b) Rabah renders a Mavoy where part of the Koreh is above twenty and part
below, Kasher; whereas he considers a Sucah made in this way Pasul. The
Gemara initially objects to this distinction on the grounds that, if the
reason for the former is 'Kalush', then we should say Kalush by the latter,
What does 'Kalush' mean, and what are the objections to saying Kalush
in both cases?
(c) How does the Gemara overcome this problem?
(a) The Gemara finally gives two explanations for Rabah, who differentiates
between a Mavoy and a Sucah (which begin below, but rise to above, twenty
Amos): one is that Chazal were more stringent by a Sucah, which is
d'Oraysa, than by a Mavoy, which is only de'Rabbanan.
What is the other?
(b) Others reverse Rabah's statement: A Sucah is Kasher (when some of the
Sechach is placed within twenty Amos) whereas a Mavoy is Pasul. Here again,
the Gemara gives two explanations for this - one of them, because what is
d'Oraysa does not require strengthening, what is de'Rabbanan, does.
(a) According to Rabah bar Rav Ula, both a Sucah and a Mavoy are Pasul if
some of the Sechach or the beam protrude above twenty Amos.
Answers to questions
What does Rava
say? How does Rava differ radically from all that we have learnt about the
Sechach or the Koreh (that are above twenty Amos) until now?
(b) How does Rav Papa prove his Rebbe's statement from the entrance of the
(c) How does Rav Papa explain the Beraisa, which writes ... 'Meni'ach Koreh
mi'Sefas Esrim *u'Lematah'*?
(d) If the Tana means *above* twenty Amos, then why does he write
(a) To which two issues was Rav Nachman (quoted by Abaye) referring when he
gave the Shiur Amah regarding a Mavoy as five Tefachim?
(b) Since Rav Nachman was coming to be stringent, how do we explain,
according to him, the four Amos minimum length of a Mavoy - where small Amos
would turn out to be a leniency? (two answers)
(c) What are the two ramifications of a similar statement that Rav Nachman
made with regard to Sucah?
(d) How will Rav Nachman explain the minimum area of four Amos by four Amos
that Rebbi requires for a Sucah? According to Rav Nachman, this will again
be a leniency, and not a stringency (two answers)?
(a) With regard to Kil'ayim however, Rav Nachman holds (again le'Chumra),
that an Amah consists of *six* Tefachim. He said this with regard to a
Karachas ha'Kerem and Mechol ha'Kerem. What is ...
Answers to questions
(b) Why do Beis Hillel require ...
- ... a 'Karachas ha'Kerem'?
- ... a 'Mechol ha'Kerem'?
(c) What does the following Mishnah in Kil'ayim mean: 'Kerem ha'Natu'a al
Pachos me'Arba Amos, Rebbi Shimon Omer, Eino Kerem'?
- ... sixteen Amos by Karachas ha'Kerem, and why do Beis Shamai require twenty-four?
- ... twelve Amos in a Mechol ha'Kerem?
(d) Assuming that Rav Nachman incorporates *all* cases of Amah in connection
with Kil'ayim, and assuming that he is coming to be stringent, as we
explained above, what will do with Rebbi Shimon in the above Mishnah in
Kil'ayim, where Rav Nachman's statement will be a leniency, and not a