Bein Hashemashos according to R. Yosi:
- lasts for half a mil (9 minutes).
- is as long as the blink of an eye.
- is when the top of the sky is black.
- starts earlier than Bein Hashemashos according to R. Yehudah.
- is night according to R. Yosi.
Rebbe Yehudah HaNasi was a Talmid of R. Yosi.
- True/
- False.
- Rebbe Yehudah HaNasi was a Talmid of R. Yosi.
- R. Yosi heard from R. Yehudah ben Agra what Rebbe taught.
- No, Rebbe did not hear any Halachos from R. Yosi.
A Nidah who did Hefsek Taharah only in the morning
- Can immerse at night since it is unlikely that she bled during the day.
- If she did Hefsek Taharah after Mincha Gedolah this is enough.
- She must check throughout the entire Bein HaShemashos.
- Rashi implies that she must check at one point during Bein HaShemashos.
- If she checked; in the morning and after nightfall; the Tevilah works.
A woman who saw a blood stain:
- Is Tamei retroactively until the last time she laundered her clothing.
- Is Tamei retroactively for the last 24 hours.
- Machlokes A&B.
- Must wash her clothes immediately.
- She is Tamei but she is not Metamei Kodashim.
She saw a stain and afterwards bled.
- If she bled before sunset on the day she saw the stain she is Tamei from the time she found the stain.
- We are lenient that she is only Tamei from the time of bleeding.
- A stain is a Torah prohibition so she is Tamei from the last time she laundered.
- We say that the stain appeared in the last 24 hours.
- Machlokes A&D.
Rav Asi was quiet and did not answer Rav Zeira's question
- Because he thought Rav Zeira was trying to make him laugh (like Rav Yirmiyah did - above 23a).
- Because keeping quiet is acquiescence and he agreed that stains need Hefsek Taharah.
- Rav Asi thought so quickly that he overlooked that both R. Yochanan and Resh Lakish say stains need Hefsek Taharah.
- Rav Zeira asked so many times that it bothered Rav Asi.
- Stains are only Rabbinical and Rav Asi had more important issues to deal with.