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HALACHA MASTERY: Intensive Gemara Shabbat

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Rabbi Jesse Horn

HALACHA MASTERY: Intensive Gemara Shabbat

Thursday 9:00PM
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Course Description

This course is an optional part of the WebYeshiva.org Halacha Mastery Program, open to all WebYeshiva.org students.

In this course we will learn Tractate Shabbat and develop skills to better study and understand Gemara. This semester Rabbi Horn will be teaching  the 7th Perek of Shabbat (Siduray D’Pat.)

The course is free for members of the Halacha Mastery Program (click here to apply), or costs $25 for those who have not yet joined the program.


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Laws of the Land $25.00 USDIntensive Gemara $25.00 USDBoth Courses $40.00 USD

To view the Intensive Gemara Shabbat Forum please visit: https://groups.google.com/forum/?hl=en#!forum/intensive_gemara_shabbat

About Rabbi Jesse Horn
Rav Horn earned a B.A. in Judaic Studies and M.A. in Jewish Education from Yeshiva University and is a Musmach of YU/RIETS. Rav Horn is known for his methodological and Brisker approach to Gemara. In shiur, he teaches Talmidim to rigorously read and dissect texts, to ask major questions on the Sugya, and to develop and analyze the answers and approaches offered by the Rishonim. Rav Horn is a Rebbe at Yeshivat HaKotel, NCSY Kollel and has also taught at Shaalvim for Women, Midreshet HaRova, and Be'er Miriam.

Class Resources & Information

Can't watch the Webex archive files? Click Here
May 15, 2014 9:00PM - 10:00PM
Tikkun and MiKalkel

Hello, and welcome to Halacha Mastery. 

I thought I would quickly introduce myself.  In addition to working for the WebYeshiva I teach post-high school students in Yeshivat Hakotel and Midreshet HaRova in Israel.  Along with my wife and four wonderful children, I reside in Neve Daniel.

I am very excited to teach Gemara Shabbat.  We plan on beginnning with the Mishnah on 73a.  The Sugyot found there are very rich, both in Lumdus and Halacha; both of which we plan on learning well.

Regarding preperation.  Most importantly is to see:

1 - Gemara Shabbat, the Mishneh 73a

2 - Tosfot in Shabbat הקושר

3 - Gittin 19a

4 - Rashi in Gittin מקלקל הוא

5 - Tosfot in Gitten מוחק

6 - Gemara Baba Kamma 34b, the Mishnah and following Gemara n 35a

7 - Tosfot in BK מתניתין


If you have any questions, feel free to email me at hornjesse@gmail.com.


Looking forward

Jesse Horn



plainShabbat 73a
plainGitten 19a
plainBK 35a
May 22, 2014 9:00PM - 10:00PM
Charisha (Plowing)

Shavuah Tov

The overall feedback I got was positive, which is great.  People seemed excited with the Brisker style of learning Gemara.  People did ask me to translate more, so I plan on doing that.  (You may have even noticed that I started in the emails).

Here are the Mekorot (sources) for next Thursday's Shiur.  We are talking about Charisha(plowing) the first of the 39 Melachot (prohibited acts).

  1. Gemara Shabbat 73b from the top until the words "והדר כרבט"
  2. Rashi on that Gemara
  3. Gemara Shabbat 73b  from "תנא החורש" until"מקלקל הוא"  just before the two dots.
  4. Rashi on that Gemara
  5. The Rambam Hilchot Shabbat, Perek 8, Halacha 1


Additionally, here are the answers to the questions I sent.  If clarification is needed (even a lot of it), please feel free to ask. 

1. What is Tosfot’s opening question?

Does Matir (untying) need to be designed to retie to be Chayuv (liable)

2. What is Tosfot’s answer (Rashi and Rabaynu Chananel)?

It's a Machlokit (arguement) between Rashi and Rabaynu Chananel (who Tosfot accept).

Rashi - no

Rabaynu Chananel and Tosfot - yes

3. Rabbi Soloveitchik classified Matir as parve.  Do parve Melachot (prohibited acts) have to be “Al Minas L’Tikan” (done for a constructive purpose)?

Thats a Machlokit (arguement) as well; Rashi vs Rabaynu Chananel and Tosfot. 

Rashi - no

Rabaynu Chananel and Tosfot- yes

4. How did Rashi and Tosfot’s (Gitten 19a) explanation for why Sikra Al Gabay D’yo (one ink on top of another) according to one opinion is Chayuv (liable)?

Rashi - it's not complete destructive and therefore is Chayuv (liable)

Tosfot - it's constructive and therefore Chayuv (liable)

5. If one does a Melacha (forbidden activity) that is MiKalkel (destructive), did one violate an Isur (prohibition)?

Thats a Machlokit between Rashi and Tosfot.

Rashi - yes

Tosfot - no

6. What were the two conceptual models we developed regarding Tikkun (a constructive outcome) and Kilkul (a negative outcome)?

One is Chayuv (liable) unless there is a reason to Patur (exempt), for example Kilkul (it's destructive)

One is only Chayuv (liable) if its a Tikkun (constructive)

7. How did we use these two conceptual models to explain all the Machlokot (arguments) between Rashi and Tosfot?

Rashi accepted the first conceptual model, while Tosfot accepted the second.


pdfShabbat 73a
May 29, 2014 9:00PM - 10:00PM
Borrer (Separating)

Shavuah Tov!!


Moving along in our study of the Melachot, we confront Borrer (Separating).  As usual, we will being with an analysis of the Gemara and Rishonim, and from there, move into the Halacha L'Maaseh (practical Halacha) issues.


Here are the Mekorot.  And as usual, feel free to email me (thanks to those who have been)

1. Gemara Shabbat 74a from ת"ר after the two dots, until "הא בנפה וכברה"

(here is the link) http://daf-yomi.com/Dafyomi_Page.aspx?id=270&vt=1&fs=0

2. Tosfot D"H היו

3. Tosfot D"H בורר

4. Rabaynu Chananel 74b from מ"ט דמלכת until בלבד


5. Taz on Shulchan Aruch 319:13

6. Mishneh Brura 319:61

7. Chazon Ish (I'll make a copy)

8. Mishneh Brura (introduction to 319)



imageChazon Ish
June 12, 2014 9:00PM - 10:00PM
Tochen (grinding)

Here are the Mekorot


1. Gemara Shabbat 74b, from "והטוחן" until the two dots.

2. Ran (Dapay HaRiff 32a אמר רב פפא)

3. Tosfot Shabbat 114b אלא (and the Gemara there)

4.Shulchan Aruch and Ramah Orach Chaim 321:12

5. Mishneh Brura 321:41

6. Shulchan Aruch 328:1

June 19, 2014 9:00PM - 10:00PM
Bishul (cooking)

Nice to learn again after the break for Shavout.

Next week we plan on beginning Bishul (cooking).  It is a big Melacha and we plan on spending at least two weeks on it.  The Mekorot should come out after Shabbat. 

Have a great Shabbos.  Looking forward to learning again next week.



plain5 - Bishul.docx
June 26, 2014 9:00PM - 10:00PM
Bishul (cooking) part 2

I hope part one of the Halachot of Bishul went over well.  From the responses I saw, it seemed it did.  As usual, please feel free to email question.  (I know many of you have been).


I uploaded the Mekorot for the next Shiur coming up this Thursday.


All the best

plainBishul -6.docx
July 3, 2014 9:00PM - 10:00PM
Bishul (cooking) part 3

I hope things are well.  Here are the Mekorot (sources) for the last Shiur on Bishul (cooking).  The first two sources are found here  http://www.dafyomi.org/index.php?masechta=shabbos&daf=36b



plainBishul Part 3
July 10, 2014 5:00PM - 6:00PM

I am attachking the Mekoros for Thursday's Shiur.  Rashi can be found at the link below.


Reminder - The Shiur will meet at 5:00 pm.


Looking forward


plainMekoros for Kosher.docx
plainMekoros with the Riff
July 17, 2014 9:00PM - 10:00PM
Daver SheAno MItkaven

The Mekorot are on the file.

July 24, 2014 9:00PM - 10:00PM
Opening Bottle and Cans on Shabbos

I hope things are well.  For the last two classes (this week and next) I plan on dealing with specific cases.  I think it is important to see Poskim in action.  Until now we looked at the Melachos and a few principles.  For the last two classes we’ll start with the Halachik question and then go to the Mekorot. This week we’ll discuss opening and closing bottles.


The Mekorot are attached in a word doc, but here is the list anyway.


1. Mishneh Shabbat 146a

2. Aruvin 34b

3. Ran (Dapay HaRiff 61b

4. Tosfos (Shabbos 146a D”HShover)

5. Shulchan Aruch 314:1

6. Mishneh Brura 314:7


As usual, feel free to ask me anything if you like.

Looking forward.

plainMekoros for opening a can or bottle.docx
July 31, 2014 9:00PM - 10:00PM
Going to the Kotel on Shabbos

I hope you have enjoyed this semester as much as I have.

Thursday, we will talk about going down to the Kotel on Shabbos and potential probelm it raises with the security cameras.  Some of the Shiur will review Daver ShaAno Mitkaven and others will introduce new materail dealing with Ketiva.

Looking forward


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