Is one permitted to enter and/or daven in a Karaite synagogue nowadays (according to Rabbinite law)?
Messianic Judaism is a heretical offshoot of Judaism which maintains that Jesus was the Mashiach which may violate the prohibition of avodah zarah (see above link). Would the tefillin or tallit* used ...
For those that consider Chabad to be heretical, would a woman that received a Get from their Beis Din require another Get?
For those that hold that Chabad are heretical in one way or another (see Rav Shach's speech, Rabbinical Council of America (1996) etc.), would a woman that was given a Get from their beis din require ...
From what I have read there seems to be ample evidence that the term מין, as used in several places in the talmud, refers to Christians. I would like to know if there are any authorities who cite this ...