In the Diaspora, if one remembers on the first day of a two-day holiday, may one make a courtyard eruv on condition?
Synopsis
In the Diaspora on the first day of a two-day holiday, a conditional courtyard eruv may be made if one remembers; this eruv applies based on which day ultimately proves to be the holiday. Techum eruvin are never permitted even conditionally.
More in Ya'aleh V'Yavo on Rosh Chodesh
Related from other topics
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?
Eruv Techumin from the Road
When making a two-day eruv in opposite directions, is it required that each eruv location be reachable on the first day?
Eruv Tavshilin Procedure
Are two-day Yom Tov observances in the diaspora relevant to processing animals from the first day on the second day?
Musaf on Yom Tov
Discussion
Discussion coming soon.
The Daily Law
One question. Every opinion. Every morning.
A new halakhic question and the full spectrum of rabbinic thought, delivered daily.