ANSWERS TO REVIEW QUESTIONS
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafEruvin 92
ERUVIN 92, 93 - have been dedicated by Mrs. Rita Grunberger
of Queens, N.Y., in loving memory of her late husband, Yitzchok
Yakov ben Eliyahu Grunberger. Mr Grunberger helped many
people quietly in an unassuming manner and is sorely missed by
all who knew him.
(a) The S'tam Mishnah in Shabbos, which forbids carrying from a wall
between two courtyards down into one of the courtyards (and which must be
speaking at least in a case when they made an Eruv) - is a Kashya on Rebbi
Yochanan (specifically, because he always rules like a S'tam Mishnah)
which rules like Rebbi Shimon even when the courtyards made their own
(b) If not for Rebbi Yochanan's ruling, we would be able to establish the
Mishnah when they made an Eruv (like Rav).
(c) Rebbi Yochanan explains 'u'Vilevad she'Lo Yoridu *le'Matah*' to mean
in the house (rather than in the courtyard, which is permitted).
(d) If Rebbi did not specifically forbid eating in the courtyard, where
did Rebbi Chiya get it from (i.e. Rebbi Chiya is not the last word in the
(a) In the case of two courtyards flanking a ruin, only of which made an
Eruv, Rav Huna maintains that we give the ruin to the courtyard which did
not make an Eruv - because otherwise, we are afraid that they may carry
the vessels which they carried from the house to the courtyard into the
ruin (like Rav on 91a, whose disciple Rav Huna was).
(b) Chiya bar Rav quoting his father, says that we give the ruin to both
courtyards, explaining this to mean that both are forbidden to carry.
(c) Rav forbids carrying the vessels from the courtyard which made an Eruv
to the one which did not, but not vice-versa - because whereas in the
former case, we suspect that they may carry vessels that were carried from
their house, from thier courtyard to the one which did not make an Eruv,
this fear does not apply in the opposite case, since, having not made an
Eruv, there are unlikely to be vessels from those houses in the courtyard.
Nor are we afraid that they may carry vessels from the courtyard which
made an Eruv back to their own, because people tend to use their own
vessels, not somebody else's. In any event, if Rav would permit carrying
from a courtyard which made an Eruv to a ruin, then why should he forbid
carrying from a courtyard which made an Eruv to one which did not?
(d) This is no proof, answers the Gemara. Because people tend to leave
their things in a courtyard which is guarded, but not so much in a ruin,
which is not (and on something which is not common, Chazal do not issue
(a) If a large roof adjoins a small one, the Tana permits the owner of the
large roof to carry vessels from his house to the roof - because the
opening into the small roof, a gap in the wall, serves as a Pesach; but
not the owner of the small one - which is completely open to its larger
According to Shmuel, the Tana needs to mention this Din with regard to
both two roofs and two courtyards, to teach us that the roofs, like the
courtyards - are used by many people, otherwise, we would say 'Gud Aseik
Mechitzasah' (in spite of the fact that there is no gap between the roofs)
and the small roof too, would be permitted).
(b) For the above concession to apply (to the large roof), the gap would
have to be no wider than ten Amos, otherwise, it is no longer a Pesach.
(c) The author of this Mishnah (who forbids the owner of the small roof to
carry) could well be Rebbi Meir, who considers all roofs to be one Reshus
- because that only pertains to vessels which were resting there when
Shabbos entered, but not to those which came from the house, and which
could well be the ones under discussion here.
(d) Assuming that we are dealing here with roofs which do have walls (but
whose outer walls serve as the Mechitzos, on the basis of 'Gud Aseik
Mechitzasah', we would have to be speaking about flat roofs, because by
sloping roofs, we do not say 'Gud Aseik Mechitzasah'.
(a) Rabah, Rebbi Zeira and Rabah bar Rav Chana deduce from our Mishnah -
that the residents of the large area prevail over those of the small area
(to include them in their number), but not vice-versa.
(b) Consequently, if there are vines in ...
(c) Seeing as the large field has a Mechitzah whose Pesach is considered
as if it was completely closed - one may sow right up to the Pesach (even
though there is nothing really dividing the seeds from the trees.
- ... the large field, it is as if they were also in the small field, and it is forbidden to sow seeds there.
- ... the small field, it is permitted to sow seeds in the large one.
(d) Since he planted his trees with permission, the owner of the vines is
not obligated to uproot them (a penalty which is confined to those who
planted or sowed illegally).
(a) If the woman is standing ...
1. ... in the *large* courtyard and her Get is in the *small* one - then
we consider the Get as if it were in the large courtyard and she is
(b) We cannot consider her to be in the large field (together with her
Get), to declare her divorced - since she has not yet acquired the Get, so
what will be gained by placing her with the Get (it is she who needs to
acquire the Get and not vice-versa).
2. ... in the *small* courtyard while her Get is in the large one - then
she is not divorced.
(a) If the community are ...
8) With regard to reciting the Shema ...
1. ... in the *large* room, and the Shatz in the *small* one - it is
considered a Minyan and they *are* Yotze Tefilah be'Tzibur.
(b) In the latter case, we do not consider the community to be in the
large room, to consider them a Tzibur - because a minority can be
considered a part of a majority, but not vice-versa.
2. ... in the small room, and the Shatz in the large one - there is no
Minyan and they are *not*.
1. ... if the person who wants to recite the Shema is in the *small* room,
and there is excrement in the *large* room - it is as if he were in the
large room and is forbidden to recite the Shema.
2. ... if the person who wants to recite the Shema is in the *large* room,
and there is excrement in the small room - he may recite the Shema,
because as far the large room is concerned, there is a Mechitzah which
divides between the person and the excrement.
(a) Abaye asked the Amora'im why, in the first case, when the vines are in
the large field, seeing as, if there was no Mechitzah, it would be
permitted to sow seeds beyond four Amos, why is it forbidden to sow *at
all* in the small one - even more than four Amos away from the vines.
Since when does a Mechitzah create Isurim?
(b) Rebbi Zeira cited the case of a large Chatzer adjoining a small one,
where carrying in the large Chatzer is permitted, whereas if they were to
extend the walls of the small Chatzer to cut right through the large one,
it would be forbidden to carry in the large Chatzer, too.
(c) Abaye however, rejects that proof - because there, the new Mechitzos
of the large Chatzer completely negate the old ones, rendering them
ineffective; whereas in our case, why should the walls of the large field
forbid sowing completely in the small one?
(a) Rava (or Rabah - see Tosfos DH 'Amar Lei') asked Abaye from a case
quoted later (on 95a), where Rava holds that if one placed S'chach on top
of a porch (which has two full walls), the Sucah is Kasher, because of the
vertical one-Tefach thick posts which are visible from the inside (as we
have learnt in Sucah - a Sucah is Kasher if it has two full walls and a
third wall of one Tefach). Now if one were to build walls on top of the
two existing ones, flush abainst the posts, the Sucah would become Pasul.
So here we have a case, Rabah asks Abaye, where Mechitzos create a Pesul?
(b) This proof too, Abaye refutes (according to Rabah and Rava's opinion
regarding Sucah) on the same grounds as he refuted the previous one -
namely, that the second set of Mechitzos completely negate the first ones,
which cease to be effective.
(c) Abaye himself however, disagrees with the very basis of the proof.
According to him, the Sucah is Kasher, even if a wall is built which
covers the original posts - because of 'Pi Tikrah Yored ve'Sosem' (The
basis of their Machlokes will be explained later).
(a) Rabah bar Rav Chanan cites the case of a house that is half covered
and half open; if the vines are planted underneath the section that is
covered, then it is permitted to sow in the open section right up to the
vines (because 'Pi Tikrah Yored ve'Sosem'); whereas if the ceiling was
extended to cover the entire house, it would be necessary to distance the
seeds at least four Amos from the vines - a clear example, claims Rabah
bar Rav Chanan, of a Mechitzah, i.e.the ceiling, creating an Isur?
(b) Here too, answers Abaye, it is not the extended ceiling which creates
the Isur, but the fact that the original wall (formed by 'Pi Tikrah Yored
ve'Sosem') has now been negated.