Monthly Archive: August 2023

Review the גמרא דף יד. “היתה של קש (two dots – second medium line) until the משנה דף יד עמוד ב 

Question:

The Gemara is very exacting with the mathematical calculation of the ratio of the circumference of a circle to the diameter (3:1) taking into consideration the thickness of the walls of the basin. 

How could this be when the real ratio of the circumference of a circle to the diameter is pi (3.14:1)?

Learn תוס’ “והאיכא

See פ’ משניות לרמב”ם

https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=254

And תוספת יום טוב says since קורה is only required mdrabanan they are lenient even to consider the width of tefach even though it is a little narrower.

https://hebrewbooks.org/pdfpager.aspx?req=9678&st=&pgnum=152

Learn רש”ש  who asks what about the opinion that lechi and Korah is a Halacha Lmoshe M’sinai?

https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=299

Learn שער הציון או”ח ס’ שע”ב אות יח

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=97

And חזון איש או”ח ס’ קלח אות ד

https://hebrewbooks.org/pdfpager.aspx?req=14336&st=&pgnum=458

https://hebrewbooks.org/pdfpager.aspx?req=14336&st=&pgnum=459

Learn the משנה דף יד עמוד ב and the Gemara until “תנא עשה לחי

See ריטב”א

https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=22

Question:

Is there a minimum width of a Lechi?

Learn

תוס’ דף פ: “אבל קורה

https://hebrewbooks.org/shas.aspx?mesechta=3&daf=80b&format=pdf

See מרדכי ס’ תפ”ב

https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=397

See תהלה לדוד ס’ עד

And בית יוסף ס’ שס”ג סע’ ז

https://hebrewbooks.org/pdfpager.aspx?req=14268&st=&pgnum=132

Very quickly review the גמרא דף יד. “ר’ יהודה אומר (three lines before the medium size lines) until “עגולה” (two dots – sixth line from bottom of the Amud) 

Questions:

Why according to the Rabanan does a קורה which is four tefachim wide not need to be strong enough to support a brick?

Is a four tefachim wide קורה made from straw or twigs kosher?

Learn ביאור הלכה ס’ שס”ג סע’ י”ז “חזקה

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

According to the opinion of the Shulchan Aruch סע’ כב that two קורות combined can only be maximum one tefach apart from one another. Could they combine to create a קורה which is four tefachim wide and therefore be allowed to be 2 1/2 tefachim apart from one another ? 

Learn ביאור הלכה ס’ שס”ג סע’ כב “בתוך טפח 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

What if the physical material of the קורות total four tefachim but there are gaps in between?

See השגת חזון איש 

Questions on the Gemara earlier on the Amud

The Gemara brought a scenerio where a mat is placed over a קורה and the mat is suspended in the air 3 tefachim or more from the ground. The קורה is disqualified because it is not visible and the mat does not serve as a mechitza since there is a gap of three tefachim between it and the ground. 

According to the opinion of קורה משום מחיצה why should it matter that the קורה is not visible it should still function as a mechitza?

Learn ריטב”א

Why can’t the mat itself be considered a קורה?

Learn ריטב”א דף יד “קורה אין כאן

And רשב”א “הניח קורה

How is it possible to have an opinion of קורה משום מחיצה as the mechitza is suspended above three tefachim from the ground?

Learn ריטב”א דף יד “מחיצה אין כאן

And ח’ מאירי דף יד “ויש שנשאלו  

How could a Lechi be considered a mechitza when animals are able to walk right past it? 

Learn the גמרא דף יד. “עגולה  (two dots – sixth line from bottom of the Amud) until the משנה דף יד עמוד ב 

Question:

The Gemara is very exacting with the mathematical calculation of the ratio of the circumference of a circle to the diameter (3:1) taking into consideration the thickness of the walls of the basin. 

How could this be when the real ratio of the circumference of a circle to the diameter is pi (3.14:1)?

Learn תוס’ “והאיכא

See פ’ משניות לרמב”ם

And תוספת יום טוב says since קורה is only required mdrabanan they are lenient even to consider the width of tefach even though it is a little narrower.

Learn רש”ש  who asks what about the opinion that lechi and Korah is a Halacha Lmoshe M’sinai? 

Learn שער הציון או”ח ס’ שע”ב אות יח

And חזון איש או”ח ס’ קלח אות ד 

Conclusion of Sugya: “קורות אחת למעלה ואחת למטה 

Do the Rabanan (Mishna 13b) who disqualify קורה that is not בריאה לקבל אריח also permit two קורות at different height elevations? 

Machlokes between רא”ש ס’ יח’ (in middle) and ריטב”א דף יד. “ר’ יוסי בר’ יהודה  

https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=22

Tosfos ( דף יד. “ובלבד) quotes the Gemara Sukkah which limits the height distance between two קורות which are less than a tefach wide to three tefachim 

Learn רמב”ם ה’ שבת פרק י”ז הלכה כה with the מגיד משנה who explains the Rambam argues on Toafos and permits the two קורות that are at different elevations even with distance greater then three tefachim.

Question:

The Rambam in Hilchos Sukkah rules that pieces of schach less than a tefach each that are place at different height elevations can not combine if the distance between them is greater then three tefachim?

Learn כסף משנה for a different explanation in the Rambam plus an answer to this question.

https://hebrewbooks.org/pdfpager.aspx?req=14278&st=&pgnum=77

How do we conclude lhalacha?

Learn שולחן ארוך ס’ שס”ג סע’ כג 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

Review the גמרא דף יד. “ר’ יהודה אומר (three lines before the medium size lines) until “עגולה” (two dots – sixth line from bottom of the Amud) 

Questions:

Why according to the Rabanan does a קורה which is four tefachim wide not need to be strong enough to support a brick?

Is a four tefachim wide קורה made from straw or twigs kosher?

Learn ביאור הלכה ס’ שס”ג סע’ י”ז “חזקה

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

According to the opinion of the Shulchan Aruch סע’ כב that two קורות combined can only be maximum one tefach apart from one another. Could they combine to create a קורה which is four tefachim wide and therefore be allowed to be 2 1/2 tefachim apart from one another ? 

Learn ביאור הלכה ס’ שס”ג סע’ כב “בתוך טפח 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

What if the physical material of the קורות total four tefachim but there are gaps in between?

See השגת חזון איש 

Continue learning the גמרא דף יד. “עגולה  (two dots – sixth line from bottom of the Amud) until “תני ” (second to last line from bottom of the Amud)

Continue learning the Gemara until the משנה דף יד עמוד ב 

Click on the Right Side of Player to Download File

Review גמרא דף יד “היו אחת למעלה (thirteen lines before the medium lines) until the two dots (two lines before the medium size lines)

Do the Rabanan (Mishna 13b) who disqualify קורה that is not בריאה לקבל אריח also permit two קורות at different height elevations? 

Learn רא”ש ס’ יח’ (in middle) 

Learn ריטב”א דף יד. “ר’ יוסי בר’ יהודה  

https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=22

Is there a limit to the height distance between two קורות placed at different height elevations?

Learn תוס’ דף יד. “ובלבד

Learn רמב”ם ה’ שבת פרק י”ז הלכה כה with the מגיד משנה who explains the Rambam argues on רבינו יהונתן and asks on the Rambam how could we combine two קורות that are at different elevations even with distance greater then three tefachim when the Gemara Sukkah says we do not combine them when the width of the beam is less than a tefach wide (same question as תוס’ “ובלבד) ?

Learn כסף משנה for a different explanation in the Rambam and different answer to Tosfos question

https://hebrewbooks.org/pdfpager.aspx?req=14278&st=&pgnum=77

Learn שולחן ארוך ס’ שס”ג סע’ כג 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

Learn the גמרא דף יד. “ר’ יהודה אומר (three lines before the medium size lines) until “עגולה” (two dots – sixth line from bottom of the Amud) 

Why according to the Rabanan does a קורה which is four tefachim wide not need to be strong enough to support a brick?

Is a four tefachim wide קורה made from straw or twigs kosher?

Learn ביאור הלכה ס’ שס”ג סע’ י”ז “חזקה

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

According to the opinion of the Shulchan Aruch סע’ כב that two קורות combined can only be maximum one tefach apart from one another. Could they combine to create a קורה which is four tefachim wide and therefore be allowed to be 2 1/2 tefachim apart from one another ? 

Learn ביאור הלכה ס’ שס”ג סע’ כב “בתוך טפח 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

What if the physical material of the קורות total four tefachim but there are gaps in between?

See השגת חזון איש 

Continue learning the גמרא דף יד. “עגולה  (two dots – sixth line from bottom of the Amud) until “תני ” (second to last line from bottom of the Amud)

Click on the Right Side of Player to Download File

Very quickly review גמרא דף יד “אמר רב ששת until the two dots (two lines before the medium size lines)

Question:

Why does ר’ יהודה not require קורה  to be strong enough to support a brick?

Learn ר’ יהונתן משנה יג: “ר’ יהודה & דף ב. “ור’ יהודה 

Questions:

Do the two קורות combined need to be a tefach wide?

Learn ריטב”א דף יד. “וכן  

https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=21

When using two 1/2 tefachim קורות how much space can be between them?

Learn רבינו יהונתן 

Learn רמב”ם ה’ שבת פרק י”ז הלכה כה 

Learn שולחן ארוך ס’ שס”ג סע’ כב 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

Learn ביאור הלכה ס’ שס”ג סע’ כב “שצריך

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

Do the Rabanan also permit two קורות at different height elevations? 

Learn רא”ש ס’ יח’ (in middle) 

Learn ריטב”א דף יד. “ר’ יוסי בר’ יהודה  

https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=22

Is there a limit to the height distance between two קורות placed at different height elevations?

Learn תוס’ דף יד. “ובלבד

Learn רמב”ם ה’ שבת פרק י”ז הלכה כה with the מגיד משנה who explains the Rambam argues on רבינו יהונתן and asks on the Rambam how could we combine two קורות that are at different elevations even with distance greater then three tefachim when the Gemara Sukkah says we do not combine them when the width of the beam is less than a tefach wide (same question as תוס’ “ובלבד) ?

Learn כסף משנה for a different explanation in the Rambam and different answer to Tosfos question

https://hebrewbooks.org/pdfpager.aspx?req=14278&st=&pgnum=77

Learn שולחן ארוך ס’ שס”ג סע’ כג 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

Learn the גמרא דף יד. “ר’ יהודה אומר (two lines before the medium size lines) until “עגולה” (two dots – fourth wide line) 

Why according to the Rabanan does a קורה which is four tefachim wide not need to be strong enough to support a brick?

Is a four tefachim wide קורה made from straw or twigs kosher?

Learn ביאור הלכה ס’ שס”ג סע’ י”ז “חזקה

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

According to the opinion of the Shulchan Aruch סע’ כב that two קורות combined can only be maximum one tefach apart from one another. Could they combine to create a קורה which is four tefachim wide and therefore be allowed to be 2 1/2 tefachim apart from one another ? 

Learn ביאור הלכה ס’ שס”ג סע’ כב “בתוך טפח 

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

What if the physical material of the קורות total four tefachim but there are gaps in between?

See השגת חזון איש 

Review גמרא דף יד “אמר רב ששת until the two dots (two lines before the medium size lines)

Question:

Why does ר’ יהודה not require קורה  to be strong enough to support a brick?

Learn ר’ יהונתן משנה יג: “ר’ יהודה & דף ב. “ור’ יהודה

https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=331

https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=326

Learn תוס’ דף יד. “ובלבד

Questions:

Do the two קורות combined need to be a tefach wide?

When using two 1/2 tefachim קורות how much space can be between them?

Learn רבינו יהונתן 

Learn רמב”ם ה’ שבת פרק י”ז הלכה כה with the מגיד משנה who explains the Rambam argues on רבינו יהונתן and asks on the Rambam how could we combine two קורות  that are at different elevations even with distance greater then three tefachim when the Gemara Sukkah says we do not combine  them when the width of the beam is less than a tefach wide (same question as תוס’ “ובלבד) ?

Learn כסף משנה for a different explanation in the Rambam and different answer to Tosfos  question

https://hebrewbooks.org/pdfpager.aspx?req=14278&st=&pgnum=77

Learn שולחן ארוך ס’ שס”ג סע’ כב-כג

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

Do the Rabanan agree to the concept of רואין? 

Learn ר’ יהונתן on the משנה דף יג עמוד ב 

Learn

ריטב”א דף יג: “עקומה

https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=21

Learn the גמרא דף יד. “ר’ יהודה אומר (two lines before the medium size lines) until “עגולה” (two dots – fourth wode line) 

Why according to the Rabanan does a קורה which is four tefachim wide not need to be strong enough to support a brick?

Is a four tefachim wide קורה made from straw or twigs kosher?

Learn ביאור הלכה ס’ שס”ג סע’ י”ז “חזקה

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=60

https://hebrewbooks.org/pdfpager.aspx?req=60389&st=&pgnum=61

According to the first opinion of the Shulchan Aruch סע’ כב that two קורות combined can be up to three tefachim apart from one another. Could they combine to create a קורה which is four tefachim wide and therefore will not require the physical קורות to be strong enough to support a brick?

Learn ביאור הלכה ס’ שס”ג סע’ כב “שצריך

What if the two קורות combined equal four tefachim? 

Learn ביאור הלכה ס’ שס”ג סע’ כב “בתוך טפח and השגת חזון איש