[Avodah] What's a city?

[Micha Berger]

On Tue, Jun 19, 2012 at 06:35:14PM -0400, Zev Sero wrote:
> Lich'ora, if the property is fenced (and thus a reshut hayachid) one
> counts the 70 2/3 amot from the fence, not from the house.

Eiruvin 53a and 55b discuss the use use of shuls, warehouses, two and
three walled structures, unrooved structures (full, 2- or 3- walled),
a place of AZ, a houseboat, a migrant's shack... The ibbur of a city is
a corner of a house that juts out, not its yard. If a fenced in reshus
hayachid were enough, much of that discussion would be moot.

The focus appears to be on structure, not reshus. The textbook case
is a "beis dirah". So, the gemara discusses semi-batim and batim that
aren't diros.

Tir'u baTov!
-Micha

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