Very quickly review משנה דף כב and the Gemara until א”ר יצחק (bottom of the Amud)
Clarify when we say אתי רבים ומבטלי מחיצות
Major Question:
The gemara asks a question on the Rabanan how could they allow a לחי וקורה on one side and צוה”פ on the other when Yerushalayim needed it’s gates closed in order to prevent it from being a Reshus Harabim.
How could the gemara ask on the Rabanan a question based on the requirements of Rebbe Yochanan. They clearly have different requirements. As the Rabanan hold if there are four corners it’s considered a Reshus Hayachid and we don’t say אתי רבים ומבטלי מחיצות?
There is a major dispute in the Rishonim how to answer this question
Learn “תוס’ דף ו:” והאמר from וא”ת
Question:
When the public walks through mechitzos does it break the entire wall on that side or just the area the people are walking through?
Learn תוס’ דף כב. “והא” & חייבין”
Learn ריטב”א דף כב. “כאן הודיעך for a different approach than tosfos.
https://hebrewbooks.org/pdfpager.aspx?req=37287&st=&pgnum=34
Learn the בעל המאור and מלחמת ה’ on the ריף on the גמרא דף כב who dispute the point above
https://hebrewbooks.org/pdfpager.aspx?req=14312&st=&pgnum=336
Is it possible to transform a town square into a reshus hayachid?
What’s the position of the בעל המאור and מלחמת ה’ on this?