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REVIEW QUESTIONS ON GEMARA AND RASHI

prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem

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Eruvin 15

ERUVIN 11-15 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.

1)

(a) According to Abaye, a 'Lechi ha'Omed Me'elav' is a Kasher Lechi. What is a 'Lechi ha'Omed Me'elav'?

(b) What does Rava hold, and when does Abaye agree with Rava?

(c) The Gemara initially thinks that their dispute extends to a Mechitzah ha'Omedes Me'eleha.
How will Rava then explain the Mishnah in Sucah, which permits a Sucah whose walls consist of trees. What will the Chidush then be?

(d) How will Rava explain the Beraisa 'Hayah Sham Geder O Chitzas ha'Kanim, Nidon Mishum Deyumad? What briefly, is a Deyumad?

2)
(a) What is an Ilan ha'Mesach al ha'Aretz', and under which circumstances is one permitted to carry underneath its wide branches?

(b) Why, according to Rava, who learns (at this stage) that the tree was planted specifically for that purpose, should carrying underneath it be restricted to a Beis Sasayim?

(c) What area does a Beis Sasayim comprise?

3)
(a) 'Shavas be'Tzel she'Hu Gavo'a Asarah ... ve'Chen be'Neka she'Hu Amok Asarah ... '.
What Halachah to we learn from this Beraisa?

(b) The Beraisa also brings a case of 'Kamah Ketzurah, ve'Shibalos Makifos Osah'. What does this mean, and why does this not present Rava with a problem?

(c) What is the Kashya case of the mound or the ditch on Rava?

(d) What does this Kashya force us to conclude?

4) What is now the basic Machlokes between Abaye and Rava?

5)

(a) We have learnt in a Beraisa that stones which protrude from a wall can serve as a Lechi, provided there is less than three Tefachim between one stone and the next. How does Rava explain this Beraisa, and what is the Chidush?

(b) 'Kosel she'Tzido Echad Kanus me'Chavero, Bein she'Nir'eh mi'Bachutz ve'Shaveh mi'Bifenim, u'Vein she'Nir'eh mi'Bifenim ve'Shaveh mi'Bachutz, Nidon Mishum Lechi'.
How does Rava learn this Beraisa, and what is the Chidush?

6)
(a) What did Rav, who was waiting in the Mavoy for some water, hint to his servant, when, as the servant entered the Mavoy, the Lechi broke?

(b) Why did he not rely on the date-palm that was growing at the entrance of the Mavoy?

(c) What did the Gemara erroneously think, that prompted it to ask a Kashya on Abaye from here?

(d) How does the Gemara answer the Kashya? What is the Halachah?

7)
(a) An animal, according to Rebbi Meir, cannot be used as a Lechi, nor is it Metame if it is used as a Golel, and Rebbi Yossi ha'Gelili invalidates a Get that is written on it.
What do the Chachamim hold in all three cases?

(b) What is a Golel?

Answers to questions

15b---------------------------------------15b

8)

(a) From which other two areas of Halachah does Rebbi Meir disqualify an animal from being used?

(b) Rebbi Yossi ha'Gelili learns word "Sefer" (in Ki Setzei) that a Get written on an animal is Pasul.
How does he learn this word "Sefer"?
Why do the Rabbanan (and even Rebbi Meir) disagree with this Derashah?

(c) The Rabbanan learn that a man cannot divorce a woman by giving her money from "ve'Kasav Lah".
Why would we have otherwise thought that he *can*?

9)
(a) Rebbi Yossi ha'Gelili learns the above Din from "Sefer Kerisus".
How does he derive it re?

(b) What do the Rabbanan learn from "Sefer Kerisus"?

(c) Rebbi Yossi ha'Gelili learns this from 'Kares - Kerisus'.
What do the Rabbanan do with 'Kares-Kerisus'?

(d) What sort of condition *will* be effective by a Get?

10)
(a) Under which two conditions is it permitted to carry inside an encampment consisting of a circle of wagons and their paraphernalia?

(b) What is the difference between a breach of ten Amos and one of *more* than ten Amos?

11)
(a) Rav Papa permits 'Parutz ke'Omed'. Rav Huna Brei de'Rav Yehoshua forbids it.
What is the basis of their Machlokes?

(b) What proof does the Gemara bring from our Mishnah, which writes 've'Lo Yihyu Pirtzos Yeseiros al ha'Binyan'?

(c) What should the Mishnah have said, according to Rav Huna Brei de'Rav Yehoshua?

12)
(a) Why does the Mishnah in Sucah: 'ha'Mekareh Sucaso bi'Shefudin O ba'Aruchos ha'Mitah' seem to prove Rav Papa's opinion?

(b) How did the Gemara initially understand the answer 'ke'she'Nichnas ve'Yotze'? What is difficult with that explanation?

(c) Rebbi Ami answers by establishing the Mishnah by 'Ma'adif'.
What does that mean?

(d) How does Rava answer the Kashya?

Answers to questions
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