REVIEW QUESTIONS ON GEMARA AND RASHI
prepared by Rabbi Eliezer Chrysler
Kollel Iyun Hadaf, Jerusalem
Previous dafPesachim 18
(a) The Tana Kama in the Mishnah in Kelim rules that if a cow drank Mei
Chatas, its flesh is Tamei.
Does this ruling apply to the cow whilst it is
still alive, or only after it has been Shechted?
(b) Rebbi Yehudah says that the water is Batel in the cow's stomach (and is
therefore not Metamei the cow).
Why did the Rabbanan not decree Tum'ah on
the water in this case?
(c) How does this appear to resolve our Sha'aleh - as to whether Rebbi
Yehudah retracted completely (from his opinion that liquid is Metamei
mi'd'Oraysa), or whether he only retracted from the fact that it is Metamei
vessels, but not from the fact that it is Metamei food)?
(a) The Gemara tries to answer that what Rebbi Yehudah means is that the
water is Batel only as regards Tum'ah Chamurah, but not Tum'ah Kalah.
is Tum'ah Chamurah, and what is Tum'ah Kalah?
(b) What problem does the Gemara have with this answer?
(c) The Mishnah goes entirely like Rebbi Yehudah, answers the Gemara, and
there are a few words missing.
How does the Mishnah now read?
(d) Rav Ashi maintains that this is not necessary. He answers the originally
Kashya very simply.
(a) Rebbi Yossi (quoted above at the beginning of 16a) Darshens the Pasuk
like his Rebbi, Rebbi Akiva.
How does Rebbi Akiva interpret "ve'Chol K'li
Cheres Asher Yipol Mehem ... *Yitma*" (Shemini), and what does he learn from
(b) How do we know that the loaf in the Pasuk is a Sheni, and not that we
consider the vessel as if it was full of the Sheretz, so that everything
inside it becomes a Rishon?
(a) Rebbi Yossi explains the Pasuk there "ve'Chol Mashkeh Asher Yishaseh
be'Chol K'li *Yitma*" in the same way.
What does the liquid render Tamei,
and how does Rav Papa prove that it cannot be liquid?
(b) From where do we learn that something cannot transmit Tum'ah to the same
kind as itself (e.g. liquid to liquid)?
(c) How does Ravina prove Rav Papa right from "Yitma" "Yitma"?
(a) We know that it is not vessels which the liquid renders Tamei, from a
Kal va'Chomer from vessels, which are not Metamei vessels, how much more so
liquid, which became Tamei through vessels.
Answers to questions
From where do we know that
vessels are not Metamei vessels?
(b) Perhaps it is only liquid which received Tum'ah from *vessels* that
cannot be Metamei vessels, but liquid which received Tum'ah from a *Sheretz*
(a) Rebbi Akiva learns from the first "Yitma" (mentioned regarding food)
that food is Metamei liquid.
How do we know that it is a liquid that food
is Metamei and not vessels?
(b) Since, by virtue of a lack of any alternative explanation, we are forced
to learn from "Yitma" that food is Metamei liquid, why does the Gemara need
to give the reason of 'Mishum de'Alulin Lekabeil Tum'ah'?
(c) If the reason that food is Metamei liquid is not due to the stringency
of food, then what *is*?
(a) We have already learnt earlier that "Yitma" teaches us that something
cannot render something of the same kind, Tamei.
What do we learn from the
Pasuk in Shemini "ve'Chi Yutan Mayim Al Zera ... *Tamei Hu*"?
(b) Why do we need*two* Pesukim to teach us the same thing?
(c) Why could we not learn one from the other?
(a) What does Rebbi Yossi learn from the Pasuk in Tzav "ve'ha'Basar Asher
Yiga be'Chol Tamei, Lo Ye'achel"?
In which point does Rebbi Yossi argue with Rebbi Akiva?
(b) How does he learn from a 'Kal va'Chomer' from Mechusar Kipurim, that a
Revi'i ba'Kodesh is Pasul ?
(c) How might we apply here the principle of 'Dayo Lavo Min ha'Din Liheyis
ka'Nadun', and why do we *not* say it?
(d) What would he hold if he were to hold like Rebbi Akiva, that there is a
Shelishi le'Tum'ah by Chulin?
Answers to questions