Can one go back in time in order to complete a minyan, when his past self is already one of the minyan men?
On one hand, the requirement for ten men is met.
On the other, two of these men are actually the same man (albeit from different times).
Can one go back in time in order to complete a minyan, when his past self is already one of the minyan men?
On one hand, the requirement for ten men is met.
On the other, two of these men are actually the same man (albeit from different times).
Rav Natrunai Gaon appears to address this. He writes:
תשובות רב נטרונאי גאון - ברודי (אופק) אורח חיים סימן קכט
ואף על פי שעובר זמן, תפילה
Even if one travels through time, [his prayer] is considered a [valid] prayer. (Translation my own).
The implication is that a time traveler's prayer is legitimate in all respects, including inclusion in the minyan.
This is stated more clearly in later sources such as the Mishnah Berurah (70:23):
אפילו יעבור זמן תפלה בצבור
Even if he travels through time, [his prayer is considered] tefillah betsibbur. (Trans. my own).
Note that although it could be argued that Rav Natrunai is not referring to a time traveler double counting himself in a minyan, but rather simply making up a missed prayer, the Mishnah Berurah who speaks of tefillah betsibur evidently understands Rav Natrunai as indeed referring to our case of the time traveling double counting minyan man. (For if he weren't double counting himself, why would his tefillah betsibbur be an different from anyone else's?).
There are an infinite number of universes in which meeting yourself causes at least one if not both to cancel out. Thus going back in time to when you are already there is a form of suicide and prohibited. In fact, in those in which both are canceled, you will be removing one of the people already there.
It's a valid מנין only for Christians. After all, the minyan will comprise eight men, your time traveler, and the same guy (אותו האיש).
I see absolutely no problem with this.
One who has davened in one minyan can certainly attend another minyan later on for the same service, and he forms that minyan. That's often done.
As for the same person being there twice - that's also not a problem. There is a rule כל ישראל ערבים זה לזה - Each Jew is responsible for each other. Frequently, we apply this rule to helping or ascertaining that each Jew performs mitzvot properly.
Every Jew should daven with a minyan. The one that davened on time, did his job. The other part of that same person missed the minyan. So, he needs the past one to encourage the later one to be with him to daven in that same minyan, otherwise he may not have that minyan later. They are counted as two people for the minyan because the assumed later one is actually present now as far as the rest of the people can tell. (Only that individual is aware that there are two of himself.) But what counts is the needs of the congregation, here, not one's personal perspective. And so what, if the present and future version look and act identically?
One who has davened in one minyan can certainly attend another minyan later on for the same service, and he forms that minyan. That's often done.
- DanF
Good. Now extend that concept. A person is davining yehidis (alone). He davins, goes back in time to the beginning of the davining, and davins again. And again goes back in time to the beginning of the davining, and again davins, etc, nine times.
So we have the same person, appearing ten times in the same room. Does that count as a minyan and bring down the Schinah?
Maybe not. What about the rule that 6 out of 10 must be "davining" and not just making the minyan. If he goes back in time, after davining once (say, for mincha) is he now re-required to davin the same Mincha? Or, perhaps, if he goes back in time before he davined Mincha, then did he davin yet?
Who davins for the amud? What if he was a chiyuv? Who has Kadima (precedence)?
Who davins for the amud? What if he was a chiyuv? Who has Kadima (precedence)?
Doesnt answer the question. Yiddish or not, to ask another question, use the link: judaism.stackexchange.com/questions/ask.