Does a person who does not accept the concept of eruv (even if not a full Tzaddoki) invalidate an eruv by contributing to it?

Does a Tzaddoki (Sadducee) invalidate an eruv by his presence, and can he participate in or nullify one?

5 opinions

What is the status of a Kuti (Samaritan) in relation to eruv?

2 opinions

What is the status of a Jewish apostate (mumar) to idolatry or public Shabbat desecration for eruv purposes?

7 opinions

Does a mumar who violates only rabbinically (but not a Torah prohibition) attain full non-Jew status for other halachic matters beyond eruv?

1 opinions

Whether a person who violated Shabbat while believing it was permitted (mistaken about the law) is treated as a mumar

1 opinions

Which authorities hold that even a rabbinic-level public Shabbat violation suffices to create mumar status?

1 opinions

If a Jew converts (becomes a mumar) after an eruv has been set for the year, does he invalidate the eruv for subsequent Shabbatot?

4 opinions

If a mumar's home has a door opening to a non-Jewish neighborhood, can the Jews of the courtyard push him toward that entrance so he does not invalidate the eruv?

5 opinions