Questions connected to laws that were instituted by the Rabbis (not Biblical).

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5
votes
1answer
139 views

Two types of preventative enactment?

I believe this is a strictly academic question. Correct me if I'm wrong. Many of the restrictions enacted by the Rabbis (as opposed to those extrapolated from the Torah) were done so in order to ...
3
votes
1answer
99 views

decree of two days of Yom Tov

The decree of keeping two days of Yom Tov outside of Israel is because Rosh Chodesh used to be determined by Beis Din and its messengers couldn't reach all of exiles in time, thereby requiring people ...
6
votes
2answers
62 views

Does a fan or light on Shabbos need a Blech?

Obviously they wouldn't need a "blech" like we think of one, but would they need some sort of physical alteration to remind one not to adjust the knobs/switches on Shabbos? More specifically, to ...