REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 29
ERUVIN 26-29 has been sponsored by Rabbi and Mrs. Eli
Turkel of Ra'anana, Israel
(a) What is a dish of beet-roots good for, and how well should they be
(b) What did Rava mean when he said that he was like Ben Azai in the markets
(c) What did Rava answer when he was asked what quantity of apples was
required for an Eruv?
(Note: the Sugya is speaking about wild apples -
Hagahos Oshri Si'man 1. See also Tosfos 27b end of DH 'Aval').
(a) What does the Beraisa mean when it writes: 'Kol ha'Ochlin Mitztarfin
Lifsol es ha'Gevi'ah'?
(b) Why is the fact that the Beraisa says 'Kol ha'Ochlin' (which seems to
include apples) not a Kashya on Rava - who says that apples cannot be used
for an Eruv)?
(c) The Beraisa continues 'u've'Mazon Sh'tei Se'udos le'Eruv, u'che'Beitzah
Letamei Tum'as Ochlin'.
How does that disprove Rava?
(d) So what *is* the quantity of apples required for an Eruv?
(a) The Beraisa gives the Shiur of various foods: an eighth of a Lug of
spices, a Lug of vegetables, ten nuts and five peaches, two pomegranates and
Which two areas of Halachah does this concern?
(b) The Gemara assumes that the Shiur of apples should be equivalent to that
Why, in fact, are they not?
(c) The Mishnah in Pe'ah lists the minimum quantities of a. grain, and b.
liquids of Ma'aser Oni that one is obligated to give to a poor man: a. half
a Kav of wheat, a Kav of barley, one a half Kabin of spelt, a Kav of dried
figs, or a Manah (weight) of pressed ones; b. a Lug of wine and a quarter
of a Lug of oil.
Which two commodities are not eligible to be used for an
(d) Seeing as Rav's statement 've'Chen le'Eruv' applies equally, in most
cases, to the Beraisa (quoted in a.) as it does to this Mishnah, why was Rav
Yosef so upset with Rav Menasheh bar Seguvli for actually quoting it on the
(a) What did Rabah tell Rav Yosef, when he contended that, when two foods
combine for an Eruv, each must consist of at least enough for one meal?
(b) How do we reconcile Rav, who requires half a Lug of wine for an Eruv,
with the Beraisa, which gives the Shiur as enough to soak one's bread in?
(c) The Shiur for vinegar that is needed for an Eruv is enough for dipping
in vegetables for two meals.
What are the two interpretations of
'vegetables for two meals'?
(a) How do we reconcile Rebbi Shimon ben Elazar in one Beraisa, who includes
onions among the commodities that are eligible to be used for an Eruv, and
the same Tana, in another Beraisa, quoting Rebbi Meir, who disqualifies
Answers to questions
(b) Under which two conditions are onion-leaves not dangerous?
(c) What happened to Rebbi Chanina, when he ate half an onion with half its
(a) Rebbi Zeira quotes Shmuel, who says that beer is eligible to use for an
Eruv, and three Lugin of it invalidate a Mikvah?
What is the Chidush of
the latter statement? Why might we have thought that beer would *not*
invalidate a Mikvah?
(b) How does 'Trein Revai Shikra' in our Sugya mean two Lugin, and why did
Rav Acha Brei de'Rav Yosef think that two Lugin of beer are required for an
(c) On what grounds does the Gemara reject that contention?
(a) 'Achal Gerogeros ve'Shilam Temarim, Tavo Alav Berachah'.
How does Rav
Yosef explain this Beraisa, and what is his reason for this?
(b) How does he prove from there that the quantity of dates required for an
Eruv is one Kav (twenty-four egg-volumes)?
(c) How does Abaye refute Rav Yosef's proof?
(d) What is the Shiur Eruv of Shesisa (a dish including honey made from
flour which in turn, was made from kernels roasted in the oven and dried)?
(a) Abaye's nurse was a particularly knowledgeable woman.
How, according to
her, would the above-mentioned parched ears of corn make a person healthier
and give him a better disposition?
(b) Against which type of disorder did she teach Abaye to eat the meat of
the right thigh of a ram roasted in either cow's dung or coals from chips of
(c) What did she recommend that one drink afterwards?
(a) What is the difference between something that is eaten as a condiment
and something that is eaten independently (with regard to using it for the
two meals of an Eruv)?
(b) In the same regard, what is the difference - according to Rabah, between
raw meat and roasted meat?
(c) What does Rav Yosef hold?
(a) Rav Yosef proves his point from the Persians, who used to eat pieces of
roasted meat independently.
Answers to questions
What is Abaye's objection to this?
(b) The minimum Shiur of a rich man's clothes is three by three Tefachim; of
a poor man's clothes, three finger-breadths by three finger-breadths. A rich
man's clothes only receive Tum'as Medras (see Tosfos DH 'Bigdei) if they are
at least three Tefachim by three Tefachim.
What is the Shiur for Tum'as
Medras of a poor man's clothes, and how does Abaye prove his point from
(c) How does the Gemara refute the attempted answer that we go Lechumra in
(d) Do we have an answer to Abaye's Kashya (which really leaves Rav Yosef