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prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem

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Shabbos 75


(a) May one pull the loose end of a strand of a garment, if this will adjust the garment?

(b) What does Rav also say about someone who learns something from an Magush?

(c) What is a 'Magush', according to him?

(d) What is the other explanation of Magush? Why must the proponent of that explanation be Shmuel and not Rav?

(a) About whom does the Navi Yeshayah write "ve'Es Po'al Hashem Lo Yabitu, u'Ma'aseh Yadav Lo Ra'u"?

(b) What do we learn from the Pasuk in va'Eschanan "u'Shemartem, va'Asisem, Ki Hi Chochmaschem u'Vinaschem *le'Einei ha'Amim*"?

(c) Why is this Chochmah referred to as "le'Einei ha'Amim"?

(d) What does Rav say about someone who is able to work out the Tekufos and the Mazalos, but fails to do so?

(a) According to Rebbi Yehudah, catching a Chilazon fish and squeezing it for its blood, involves two Melachos: trapping and threshing (extracting its blood).
Why did the Tana Kama exempt him from threshing?

(b) Abaye claims that he is not Chayav for killing the fish, because we are speaking here about a fish that already died.
How does Rava explain the Beraisa even by a fish that was still alive when he began to squeeze it?

(c) But didn't Abaye and Rava both say that even Rebbi Shimon (who permits a Davar she'Ein Miskaven) agrees that one is Chayav for even a Davar she'Ein Miskaven, when it is Pesik Reisha? So how do we account for Rava's last statement?

(a) Someone who Shechts is Chayav for taking a life.
What other Melachah is he also Chayav for, according to Rav?

(b) Why would anyone care whether the blood makes the animal's neck more red or not?

Answers to questions



(a) Molei'ach and Me'abed are one and the same, so one of them is dropped from the Mishnah.
With which Melachah does the Gemara replace it?

(b) According to Rabah bar Rav Huna, one is Chayav for salting meat. How does Rav Ashi qualify this?

(c) What is Rava's opinion about salting meat?

(d) 'ha'Shaf Bein ha'Amudim', is Chayav.
What does 'ha'Shaf Bein ha'Amudim' mean?

(a) What is 'ha'Megarer Rashei Kelunsa'os', and what Melachah does it involve?

(b) For which Melachah would one be Chayav, if, on Shabbos, he ...

  1. ... rubbed a dressing (probably consisting of fat) on a wound?
  2. ... smoothened a stone after it was mined from the quarry?
  3. ... carved a picture on a vessel - that was intended for that purpose?
  4. ... blew a glass vessel?
  5. ... removed excess strands from a curtain or from a garment?
(c) What would be the condition for being Chayav in the latter case?
(a) Is one Chayav for ...
  1. ... writing one large letter, which takes up the space of two?
  2. ... erasing a large letter, leaving a space large enough to write two?
(b) Why the difference between them?
(a) What is the Chidush of 'Elu Avos Melachos'? Whose opinion does it come to preclude?

(b) Rebbi Yehudah inserts the Melachos of Shovet and Medakdek in the list of Avos Melachos.
What are they?

(c) Why do the Rabbanan not include them as two separate Avos Melachos?

(a) The Mishnah states a K'lal: 'Kol ha'Kasher Lehatzni'a' etc. According to Rav Papa, it comes to exclude Dam Nidah.
What does it come to exclude, according to Mar Ukva?

(b) What is the Machlokes between them?

(c) The author of our Mishnah is not Rebbi Shimon.
What does Rebbi Shimon hold regarding 'Kol ha'Kasher Lehatzni'a'?

(d) The Tana of our Mishnah holds that the person who puts away a Shiur which is smaller than the Shiurim given in our Mishnah (e.g. less than a Kigerogores of food), is Chayav if he carries it out on Shabbos, but not anybody else.
What is the opinion of Rebbi Shimon ben Elazar in this matter?

Answers to questions
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