When measuring the Shabbat boundary of an irregular city (with protruding sections), does the squaring process (ribua) apply to projecting structures as part of the city or only to the main city body?
Synopsis
The Aruch HaShulchan raises a dispute between the Tur and Rambam regarding whether protruding sections of a city are incorporated into the city's rectangle (and therefore affect all four sides) or are treated only as individual 70-amah extensions in their own direction.
More in Yom Tov — General Principles
How is the 2000-amah Shabbat boundary measured for a city that is long and narrow, or square but not aligned with the cardinal directions?
3 opinions
How is the Shabbat boundary measured for a city that is circular, triangular, or has many sides?
3 opinions
Must the circumscribed rectangle for a non-rectangular city be aligned to the cardinal directions?
2 opinions
How is the Shabbat boundary measured for a city that is wide on one end and narrow on the other?
3 opinions
How is the Shabbat boundary measured for a city shaped like a gamma (Γ) or an arc (bow), when the distance between the two tips is less than 4000 amot?
3 opinions
How is the Shabbat boundary measured for a city shaped like an arc when the distance between the two tips is 4000 amot or more?
3 opinions
Does a dwelling located outside the city but within 70 amot and two-thirds cause the boundary to be measured from it rather than from the city?
4 opinions
What types of structures outside the city can serve as an extension of the city for teḥum measurement purposes?
4 opinions
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