1)

(a)Beis Shamai learn that 'Hekdesh Ta'us, Hekdesh' from the Pasuk in Bechukosai - "Ve'hayah Hu u'Semuraso Yih'yeh Kodesh" [from the word "Yih'yeh".

(b)Beis Hillel maintain - that it is not Hekdesh.

(c)They refute Beis Shamai's proof in that - one cannot learn 'Techilas Hekdesh' (the initial taking effect of Hekdesh) from 'Sof Hekdesh' (Temurah, which is already Hekdesh).

(d)The initial example given by the Mishnah as an example of Hekdesh Ta'us is - where the owner declares Hekdesh the black ox that is about to come out from his house, and in fact, it is a white ox that exits.

2)

(a)A second example of Hekdesh Ta'us is where a person declares that the first golden Dinar that he picks up or the first barrel of wine that comes to hand will be Hekdesh - and in fact, the first Dinar ... is a silver one, and the first barrel ... is one of oil.

(b)In spite of having taught us the first case (which is Kedushas ha'Guf and goes on the Mizbe'ach), the Tana sees fit to add the second one - to teach us that the same applies to Kedushas Damim.

3)

(a)The Mishnah discusses someone who, after declaring Nezirus, was not careful not to drink wine (See Tos. Yom-Tov) - because he thought that he had expressed himself wrongly and that his Neder was therefore not valid.

(b)If he then goes to a Chacham, who rules that he is in fact, a Nazir - he continues to count his Nezirus from the day that he declared his Nezirus ...

(c)We might otherwise have thought that - we penalize him for being so lax in face of a Safek Isur, and make him begin his Nezirus all over again (See Tos. Yom-Tov).

4)

(a)In the event that the Chacham annuls his Neder, a Korban Nazir that he has already designated - is sent into the field to join the other animals ... (Yir'eh)...

(b)... because, since the Chacham annulled his Neder, it transpires that the Korban was Chulin all along (See Tos. Yom-Tov).

(c)Even Beis Shamai (who hold Hekdesh Ta'us, Hekdesh), concede to this ruling - because, seeing as he was not a Nazir, his designation of the animal was futile (like a person who is not Chayav a Chatas who designates an animal for his Chatas).

5)

(a)Beis Hillel try to prove from the current ruling - that 'Hekdesh Ta'us is not Hekdesh'.

(b)Beis Shamai retort from a case of Ma'aser Beheimah, where the owner declares the ninth animal 'the tenth', the tenth, the ninth' or the eleventh animal, 'the tenth'. We learn from the Pasuk in Bechukosai "ve'Chol Ma'asar Bakar va'Tzon" - that all these animals are Ma'aser.

(c)Beis Shamai tries to prove from there that - 'Hekdesh Ta'us is Hekdesh'.

(d)Beis Hillel however retort - that if Hekdesh Ta'us is Hekdesh, then the same Din ought to apply to the eighth or the twelfth animal that the owner declares Ma'aser ...

(e)... and the reason that the above three animals are Ma'aser is - due to a Gezeiras ha'Kasuv (See Tos. Yom-Tov).

6)

(a)The Mishnah discusses a man who declares Nezirus having in mind to bring certain animals as his Korban Nezirus - and who subsequently discovers that they have been stolen.

(b)The Chacham will annul his Nezirus - provided the animals were stolen before he declared his Nezirus.

(c)For his Nezirus to be annulled, the 'Nazir' must say - that had he known that the animals had been stolen, he would not have made the Neder.

(d)The Chacham will not annul the Nezirus if it preceded the theft - because it is 'Nolad' (a new unanticipated development0, and as we learned in Nedarim, a Chacham cannot be Matir a case of Nolad (See Tos. Yom-Tov).

7)

(a)Nachum ha'Madi annulled the Nezirus of the Nezirim who came to him from Chutz la'Aretz and discovered that the Beis-ha'Mikdash was destroyed - based on the Pesach that had they known that it would be destroyed, they would not have declared Nezirus.

(b)His mistake was - that the Nezirus preceded the destruction, in which case it was a case of Nolad, and was therefore not subject to nullification.

8)

(a)According to Beis Shamai, in a case where Reuven declares that if it is Levi walking towards him and Shimon declares that it is not , where Yehudah declares Nezirus if one of them is a Nazir, Yisachar declares himself one if neither of them is, and Zevulun declares himself one if all of them are Nezirim, they are all Nezirim - because they (Beis Shamai) hold 'Hekdesh be'Ta'us Havi Hekdesh'.

(b)Rebbi Tarfon rules that none of them are Nezirim - because he maintains that Nezirus must be clear-cut (without any doubts).

(c)Beis Hillel say - that those whose words are fulfilled are Nezirim (See Tos. Yom-Tov).

(d)The Halachah is - like Beis Hillel.

9)

(a)Based on the principle that ...

1. ... 'A person does not let himself into a Safek' - the Tana Kama rules that, if Levi turned back and they did not discover his identity, none of them are Nezirim (See Tos. Yom-Tov).

2. ... 'Safek Nezirus Lehachmir' - Rebbi Shimon considers them all Nezirim.

(b)The problem regarding the Korban is - that one cannot bring a Koban Zezirus on a Safek'.

(c)Consequently, in order to be able to bring their Korban Nezirus, they must all stipulate - that if it is not like they contended, then they undertake a voluntary Nezirus.

(d)The Halachah is - like the Tana Kama.

10)

(a)A 'Coy' is - a buffalo.

(b)The problem it presents is - that we do not know to which category of animals it belongs.

(c)Besides a Beheimah or a Chayah, it might also be - an independent species of animal (See Tos. Yom-Tov).

(d)In a case where six people who see a Coy all declare Nezirus ... 'if it is a Chayah', 'if it is not a Chayah', 'if it is a Beheimah', 'if it is not a Beheimah', 'if it is both a Beheimah and a Chayah', 'if it is neither one nor the other', and where three people declare Nezirus ... 'if one of you is a Nazir', 'if none of you are Nezirim', 'if you are all Nezirim', the Mishnah - they are all Nezirim

11)

(a)'Kulam Nezirim' means, according to ...

1. ... Beis Shamai - Vaday.

2. ... Beis Hillel - Safek.

(b)And their Machlokes is based on whether 'Nezirus be'Ta'us Havi Nezirus' (Beis Shamai) or not (Beis Hillel), as we learned earlier.