According to the Rambam's formulation, is the prohibition in a mixed mavoy (Seif 2) more lenient or more stringent than the ruling in Seif 1 (as understood by Rashi/Tur), and are the two seifim in Shulchan Aruch consistent with each other?
Synopsis
The Aruch HaShulchan identifies a fundamental dispute between the Rambam and Rashi regarding the two cases in Siman 390: for Rashi (Seif 1), the first case is a great stringency; for the Rambam (Seif 2), his formulation implies a great leniency. The Aruch HaShulchan questions why the Beit Yosef presented both rulings as if they are non-contradictory.
More in Eruv Techumin from the Road
In a mavoy (alleyway) where one side is occupied by non-Jews and the other by Jews, and a second Jewish house opens to the public domain (not the mavoy) with only a window connecting it to the Jewish house in the mavoy — may the mavoy resident merge an eruv through that window to carry his belongings through his neighbor's house into the mavoy?
3 opinions
In a mavoy with Jews on one side and non-Jews on the other, if the Jewish courtyards made an eruv with each other through windows (or doorways) connecting the courtyards — may they carry through the mavoy via their doors opening into the mavoy, or must they first rent rights from the non-Jewish residents?
2 opinions
If a non-Jewish courtyard is situated between two Jewish courtyards in a mavoy, and the non-Jewish courtyard does not open into the mavoy and has no opening or window below ten tefachim to either Jewish courtyard — does the non-Jewish courtyard prohibit the Jewish courtyards from merging an eruv and using the mavoy?
2 opinions
When a non-Jewish courtyard intervenes between two Jewish courtyards (each with independent access to the reshut harabim or mavoy), may the two Jewish courtyards merge an eruv through connecting doorways and carry through the non-Jewish courtyard?
3 opinions
What is the scope of the rule that a non-Jew prohibits use of the mavoy — does the non-Jew prohibit only when his courtyard opens into the mavoy, or even when his courtyard opens into a Jewish courtyard (creating courtyard-to-courtyard access without foot-traffic through the mavoy)?
2 opinions
Does the concern about a Jew being alone among non-Jews (yachid b'makom akum) apply differently depending on whether the connection to the neighbor is via a window versus a full doorway?
1 opinions
Must the mavoy itself be properly configured (with a lechi, korah, or tzurat hapetach) for the eruv rules of siman 390 to apply?
1 opinions
Related from other topics
According to the Rambam's method, if one started praying simultaneously with the chazzan and cannot finish before Shome'a Tefillah, should one continue word-for-word with the chazzan to the end?
Individual Additions to Prayer
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Minimum Length for Valid Tzitzit
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Circumcision Timing and Preparation
Does the Rambam's understanding of the inferior partition restriction differ from the Shulchan Aruch, and if so, what is his opinion?
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What is the Rambam's position on when 'zakheh li' to a baker/shopkeeper is valid vs. invalid, and does it differ from the Shulchan Aruch?
Eruv Using a Dwelling
Does the Aruch HaShulchan accept the Rambam's ruling, or does he follow the majority of Rishonim against the Rambam?
Eruv Techumin Using an Agent
Discussion
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