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1)

(a) If Rav forbids three people to walk in a *five* Sa'ah area with a Mechitzas Shesi or Arev, how can he then permit *seven*?

(b) Rav Ashi therefore explained Rav like this - if three people required six Sa'ah, then even if they encircled seven, they are permitted to walk there; whereas if they only required *five* Sa'ah, but then encircled seven, they are not even permitted to walk the *five*.

(c) If 'u'Vilevad she'Lo Yehei Beis Sasayim Panuy' means Panuy me'Adam (meaning that as long as, after allowing a Beis Sasayim per person, there is not a Beis Sasayim extra (e.g. eight thousand Sa'ah for three people), the Mechitzah is Kasher - then it is not clear why the Mechitzah should be Pasul in either of the above cases.

(d) 'u'Vilevad she'Lo Yehei Beis Sasayim Panuy' - really means Panuy from Kelim (meaning that there may not be a Beis Sasayim that is not actually used). This explains why in the latter case - where there is a Beis Sasayim more than is needed, they are forbidden to carry there.

(a) 'Shabbos Goremes' - means that we go by what the situation was when Shabbos entered: if there were *three* people when Shabbos entered, then they are permitted to walk any distance (even by means of a Mechitzas Shesi or Arev), even if one of them died on Shabbos; whereas if there were only *two* people when Shabbos came in, and a third person joined them on Shabbos, they will only be permitted to walk a Beis Sasayim.

(b) The other holds - 'Diyurin Gormin', meaning that we go by the number of people who are currently there, irrespective of how many there were when Shabbos came in.

(c) Rabah's Sha'aleh what the Din will be if they made an Eruv by way of the entrance or by way of the window, and the entrance or the window became blocked on Shabbos - is whether we go after now, in which case there is no Eruv, and carrying from one Chatzer to the other will be prohibited, or whether we go after the moment when Shabbos entered, when there was a good Eruv in effect, in which case, it will now still be permitted to carry from one Chatzer to the other by means of other small windows which are in themselves too small to use for an Eruv. Rav Huna and Rav Yehudah answered Rabah that, since the Eruv was Kasher when Shabbos came in, it remains Kasher for the entire Shabbos.

(d) Initially, we were uncertain whether it was Rav Huna who said 'Shabbos Goremes' (the equivalent of 'Ho'il ve'Hutra Hutra'), and Rav Yitzchak, 'Diyurin Gomrin', or vice-versa - Now we say that it is Rav Huna who holds 'Shabbos Goremes'.

(a) Rebbi Yossi holds - that if carrying is forbidden on subsequent Shabbasos, it will also be forbidden on that Shabbos, too.

(b) It is possible for ...

1. ... Rav Huna to agree with Rebbi Yossi - since in that case, the Chatzer is now missing Mechitzos (and Rav Huna agrees that one cannot say 'Ho'il ve'Hutra Hutra' to make Mechitzos that are currently non-existent - which are d'Oraysa); whereas in Rav Huna's case, there *are* Mechitzos, and with regard to the Eruv (which is only de'Rabbanan) we apply 'Ho'il ve'Hutra Hutra'. 2. ... Rav Yitzchak to agree with Rebbi Yehudah - who permits the Eruv *there* because the members of both Chatzeros are still alive; whereas in Rav Yitzchak's case, where one of the people concerned, died, we will not say Ho'il ve'Hutra Hutra'. (Similarly, when one new member joined the group, we also go after the current situation, to give them as much area as they wish to walk there.)

5)

(a) They also exempted soldiers - from having to separate Demai (crops purchased from an Am ha'Aretz, who may not have given all his tythes to the Kohen and to the Levi), and from the need for soldiers living in two adjoining Chatzeros with a doorway in between one and the other, to make Eruv Chatzeros.

(b) We are speaking about soldiers who go out to a Milchemes ha'Reshus - i.e. any battle with the exception of the conquest of Cana'an (or the battle with Amalek).

(c) The second concession added by Rebbi Yehudah ben Teima - is that if one comes across a dead soldier, one buries him on the spot.'

(a) Yehoshua permitted only wood which was still attached, whereas our Tana permits even wood that is detached; and whereas, Yehoshua permitted only wet wood (which does not make good firewood), our Tana permitted dry wood, too.

(b) No! Yehoshua only permitted cutting someone else's *wood*, which does *not* stand to be harvested, but not crops, which *do*.

(c) 'Mes Mitzvah Koneh Mekomo' - applies only when there is no-one to bury the corpse (which is gauged by calling out and there is nobody in the vicinity to respond).

7)

(a) Normally, we will apply the principle 'Mes Mitzvah Koneh Mekomo' - and bury him there where we find him; unless he is lying across the street, posing a major problem for Kohanim, who pass that way. In that case, it is permitted to move him to the nearest spot that causes the least inconvenience.

(b) The order of priorities with regard to an unplowed field, a plowed field, and a sown field - is precisely in that order: the Mes should be buried if possible, in an unplowed field; if not, in a plowed field, and as a last resort, in a sown one.

(a) The soldiers are exempt from Netilas Yadayim - before the meal, but remain obligated to wash Mayim Acharonim after the meal.

(b) The reason that Mayim Acharonim is more obligatory than Mayim Rishonim - is because,whereas Mayim Rishonim is a Mitzvah (which Chazal have the right to waive - particularly as it is only mi'de'Rabbanan), Mayim Acharonim is a matter of life-danger (due to the Melach Sedomis which it contains).

(c) Melach Sedomis exists only in small quantities, says the Gemara - as little as one grain per Kur (thirty Sa'ah) - See Tosfos, DH 'Mayim', who contend that nowadays, this salt is no longer common.

(d) Yes! Someone who weighs Melach Sedomis - *is* obligated to wash Mayim Acharonim.

(a) One is also permitted to feed Demai to the poor.

(b) The reason that Chazal were so lenient by Demai - is because in reality, they knew that even the majority of Amei ha'Aretz used to separate Ma'asros, and they issued the decree of Demai in spite of the majority.

(c) According to Rebbi Yanai, the soldiers are exempt from Eruv Chatzeros (which is only mi'de'Rabbanan), but they remain obligated to make an Eruv Techumin (if they intend to walk beyond the Techum on Shabbos), because walking beyond the Techum is subject to Malkus.

(a) When Rebbi Chiya asks from "Al Yetzei Ish mi'Mekomo" - he is not suggesting that, whenever the Torah uses the word 'Al', there is no Malkus, because we know that one is Chayav Malkus for turning to witches, and there the Torah writes "Al Tifnu el ha'Ovos ve'Al ha'Yid'eonim" (Kedoshim).

(b) What he is asking, according to Rebbi Yonoson - is: how can Rebbi Yanai prescribe Malkus for walking beyond the Techum on Shabbos, since "Al Yetzei Ish mi'Mekomo" includes the Isur of carrying (as if it had written "Al Yotzi"), which is punishable by death; and any La'av which is punishable by death, is not subject to Malkus?

(c) This is incorrect, answers Rav Ashi - since the Torah writes, not "Al Yotzi", but "Al Yetzei", restricting the Pasuk to someone who *goes* outside the Techum, to preclude someone who carries. Consequently, Rebbi Yanai is justified in prescribing Malkus for someone who leaves Techum Shabbos on Shabbos.

11)

(a) A Deyumad is a dual post in the shape of half a square, each side measuring one Amah. It is the acronym of 'Deyo Amud' - meaning two posts.

(b) The four Deyumdin are necessary - to create a Reshus ha'Yachid surrounding a water-well or pit in the street, to enable drawing water from it and watering one's animal on Shabbos; something that would otherwise be forbidden, because it would constitute carrying from a Reshus ha'Yachid (inside the well) to a Reshus ha'Rabim.

(c) Each Deyumad must be at least ten Tefachim tall, one Amah long and of no fixed thickness.

(d) the maximum space permitted between one Deyumad and the next ...

1. ... according to Rebbi Meir - is ten Amos (two teams of cows, each consisting of *three* cows)
2. ... according to Rebbi Yehudah - is thirteen and a third Amos (two teams of cows close together, each consisting of *four*).

(a) The minimum space permitted between the outside of the well and the Deyumad - is to contain the head and most of the cow. The reason that we gauge the area of the Pasei Bira'os by where *the animal* stands - is because we are afraid that the owner may be drawn after his cow whilst watering it, and carry the bucket of water outside into the street.

(b) The maximum size of the area of the Pasei Bira'os, according to the Tana Kama - is unlimited, provided the Deyumdin are lengthened accordingly (so that one does leave more than the maximum permitted space between the Deyumdin - as we learnt in the previous question).

(c) The Rabbanan said to Rebbi Yehudah (who permits a maximum area of a Beis Sasayim) - that Chazal only mentioned such a Shiur with regard to a garden or an enclosure (which is adjoined to a dwelling), but as far as a pen, a coral [in the city], a storehouse or a Chatzer are concerned, there is no maximum Shiur.