1)

(a)Rebbi Chanin learns from "Eretz Chitah ... " 'Chitah l'Beis ha'Menuga'. If someone enters a house stricken with Tzara'as carrying clothes, shoes or rings - they become Tamei immediately, just like he does; whereas if he is wearing them - they become Tamei only after he has been in the house for a 'Kedei Achilas Pras' (the time that it takes to eat half a loaf that comprises eight egg-volumes).

(b)This refers to a loaf made of wheat, eaten in a state of reclining with a condiment (all of which curtail the time period involved).

(c)From "Se'orah" he learns the Shi'ur Tum'ah of a bone from a dead man regarding touching and carrying ('Etzem ki'Se'orah'). The Shi'ur of the same bone regarding Tum'as Ohel - is either the complete spinal cord, or the skull, or the majority of bones of the corpse.

2)

(a)"Gefen", 'Kedei Revi'is Yayin l'Nazir' - refers to the pits, the shoots and the leaves of the vine, which combine to make up a Shi'ur Revi'is (see Rambam). This is measured - by placing them into a full cup-full of wine, and measuring the wine that they displace.

(b)The current Shi'ur is given as a Revi'is of wine, rather than of water - because wine, which is more dense than water, will float on top of the cup and take longer to overflow than water; the Shi'ur is therefore slightly larger than that of water.

(c)Rav Chanin Darshens "Te'einah" - in connection with the Shi'ur 'ki'Grogeres' with regard to carrying and other Melachos to do with food on Shabbos.

(d)And he Darshened "Rimon" in connection with Tum'as Kelim. Private vessels continue to be Metamei, even after they have been holed, unless the hole is as large as a pomegranate - because people tend to retain their vessels with holes of that size. Whereas merchants tend to throw them away on account of holes that are smaller than that. Therefore, they are no longer subject to Tum'ah if they have even small holes than that.

3)

(a)Rav Chanin Darshen "Eretz Zeis-Shemen" - as a land of which most Shi'urim are a k'Zayis (Mes, Neveilah, Pigul, Nosar, Tamei ...).

(b)And he Darshened "u'Devash"(meaning date-honey) - in connection with the Shi'ur 'Koseves ha'Gasah' (a large date), for which one is Chayav for eating on Yom Kippur.

(c)These Shi'urim can only be an Asmachta - because if we actually had to learn the Shi'ur of the respective Shi'urim from there, how would we know for example, that 'Se'orah' refers to the bone of a corpse (and so with all of them)?

4)

(a)We learn from the Pasuk "v'Rachatz ba'Mayim es Kol Besaro" - that all of one's body must be in the water when one Tovels (i.e. nothing may divide between it and the water).

(b)Rav, who said that Chatzitzin are Halachah l'Moshe mi'Sinai - is referring to the hair, whereas the Pasuk is referring to the skin.

(c)From "es Kol Besaro" - we learn that Chatzitzah applies even to what is Tafel (secondary) to the skin (i.e. the hair).

(d)From "es Kol Besaro" we learn the basic Din of Chatzitzah regarding hair - whereas the Halachah comes to restrict the Din of Chatzitzah a. to where the Chatzitzah obstructs the majority of hair, and b. to an area where most people tend to be fussy about it (see also Tosfos DH 'Devar Torah'), as Rebbi Yitzchak taught.

5)

(a)Rabah bar bar Chanah considers a knot in one hair a Chatzitzah - because it becomes very tight.

(b)He rules that ...

1. ... three hairs tied into a knot are not considered a Chatzitzah - because the knot is very loose, whereas ...

2. ... he is uncertain whether a knot of two hairs constitutes a Chatzitzah or not.

6)

(a)Despite the fact that the Torah only considers a Chatzitzah Pasul when it is 'Rubo u'Makpid', the Rabanan decree by...

1. ... both 'Rubo she'Eino Makpid ...

2. ... and 'Mi'ut she'Makpid' - on account of 'Rubo ha'Makpid'.

(b)They did not also decree on Mi'ut she'Eino Makpid because of 'Mi'ut ha'Makpid' or 'Rubo she'Eino Makpid' - because that would be a 'Gezeirah li'Gezeirah', which, as a rule, they do not institute.

(c)To reconcile R. Chiya bar Ashi Amar Rav, who holds that Mechitzin are 'Halachah l'Moshe mi'Sinai' with Rebbi Meir, who learns the Shi'ur of Mechitzah from the Pesukim from the Aron - we establish his statement (regarding 'Mechitzin') - by 'Gud Asik Mechitzasah' (extending a wall upwards) and 'Gud Achis Mechitzasah' - extending it downwards, both where at least three Tefachim space remain), 'Lavud' (that less than three Tefachim space is considered as if it was filled in) and 'Dofen Akumah' (that up to four Amos of ceiling at the side of a Sukah is considered like a bent wall).

7)

(a)According to the Tana Kama, a Sukah may comprise two regular walls and the third one measuring even one Tefach. Rebbi Shimon requires - three Kasher walls and the fourth one, measuring one Tefach.

(b)The Tana Kama learns this from "ba'Sukos" "ba'Sukos" "ba'Sukos", two of which are written without a 'Vav' (adding up to two), and the third with a 'Vav' (making a total of four, hinting at four walls of a Sukah). Of these four is needed for itself, leaving us with three. The Halachah l'Moshe mi'Sinai then comes to diminish the third wall from a full wall to one of a Tefach.

(c)Rebbi Shimon learns his ruling from the same Pasuk - only he goes by the fact that all three words are read in the plural. Consequently, all three words indicate the plural, hinting at a total of six walls. One "ba'Sukos" we need for itself, leaving us with four full walls. The Halachah then diminishes the fourth wall to a Tefach.

(d)The fact that we do not Darshen the first Pasuk because it is needed for itself, based on the principle - 'Ein Dorshin Techilos'.

8)

(a)Initially, we explain - that the Chachamim hold 'Yesh Em li'Mesores' (we go by the way the word in the Torah is written), whereas Rebbi Shimon is of the opinion that 'Yesh Em l'Mikra'(we go after the way the Pasuk is read).

(b)The Tana Kama and Rebbi Shimon might even agree in principle.

1. ... The Tana Kama might concede that 'Yesh Em l'Mikra' and still learn from the same Pasuk that a Sukah of two walls and a Tefach will suffice - if he holds that the Sechach too, requires a Pasuk. In that case, one of the four walls hinted in "ba'Sukos", will be needed for the Sechach; whereas Rebbi Shimon holds that the Sechach does not require a Pasuk - since, without the Sechach, it is not called a Sukah.

2. ... And Rebbi Shimon might require three walls and a Tefach, even if he were to hold 'Yesh Em li'Mesores' - if he would explain that the Halachah comes, not to diminish the third wall, but to add a fourth wall of one Tefach to the three existing ones.

(c)And he might even hold both that the 'Halachah' comes to detract and 'Yesh Em li'Mesores', yet still require three walls plus one of a Tefach - if he would maintain 'Dorshin Techilos'.

(d)According to Rav Masna, Rebbi Shimon's reasoning is based on the Pasuk in Yeshayah "v'Sukah Tihyeh l'Tzel Yomam, me'Chorev ... u'mi'Matar" - implying that a Sukah needs to protect from the elements, for which it would require four walls.

9)

(a)Rav requires the wall measuring a Tefach to be placed adjacent to either of the two ends - at an angle of ninety degrees.

(b)Rav Kahana and Rav Asi asked Rav why the third Tefach wall should not have to be placed 'Keneged Rosh Tor' - meaning at an angle, like the third side of a triangle, facing the opposite corner.

(c)Rav did not know what to reply - so he remained silent.