(a) Assuming that Rabah too, establishes the Beraisa which rules (in Raban Gamliel) that someone who writes two letters on two Shabbasos is Patur, by Zadon Shabbos and Shig'gas Melachos, like whom will he establish Raban Gamliel, in order to counter Rav Chisda's Kashya? How will that explain the Beraisa?

(b) We query this however, based on the continuation of the Beraisa under discussion 'u'Modeh Raban Gamliel she'Im Kasav Os Achas be'Shabbos Zu ve'Os Achas be'Shabbos Acheres, she'Hu Patur'. What can we extrapolate from there?

(c) Assuming that Raban Gamliel concedes that he is Patur in the case of Zadon Shabbos and Shig'gas Melachos (because the days in between are considered a Yedi'ah), in which case do they then argue? In which point will the Chachamim hold that he is Patur?

(d) Why can the author then not be Rebbi Eliezer? What does Rebbi Eliezer say in a Beraisa, about someone who writes two letters on two different Shabbosos?

(a) So we suggest that 'u'Modeh Raban Gamliel' refers to other areas of Shabbos where he argues with Rebbi Eliezer, such as 'Achas al ha'Arig'. What is the case?

(b) In what way is 'Achas al ha'Arig' similar to 'Kosev Sh'tei Osiyos bi'Sh'tei Shabbasos'?

(c) On what grounds do we immediately refute this suggestion?

(a) So Rava establishes the Machlokes by 'Achas', citing a Beraisa where the Tana Kama renders someone Chayav for carrying out two half-G'rogros separately in one He'elam. How does Rebbi Yossi qualify this? In which case does Rebbi Yossi exempt the sinner from a Chatas?

(b) What is his reason?

(c) How does Rava now explain the Machlokes between Raban Gamliel and Rebbi Eliezer?

(d) Seeing as Raban Gamliel agrees with Rebbi Eliezer regarding 'Kasav Os Achas be'Shabbos Zu', why does he then argue with him in this case?

(a) We now query Rabah from our Mishnah. According to Rav Chisda, who establishes Rebbi Akiva's She'eilah by Shig'gas Shabbos ve'Zadon Melachos, Rebbi Eliezer's answer from 'Nidah' fits in neatly. Why is that?

(b) What ought Rebbi Eliezer to have said however, according to Rabah, who establishes the She'eilah by Zadon Shabbos ve'Shig'gas Melachos?

(c) How will Rabah answer this question?

(d) Shmuel and Rav Ada bar Ahavah read 'Nidah' in our Mishnah (like Rav Chisda). What does Rav bar Oshaya say?

(a) According to Rav Chisda, who establishes Rebbi Akiva's She'eilah by Shig'gas Shabbos and Zadon Melachos, how will the S'vara of 'Yamim she'Bintayim Havyan Yedi'ah Lechalek' apply to the case of Nidah?

(b) On the other hand, Rebbi Eliezer's proof 'Ba al ha'Ketanos Yochi'ach' fits in better with Rabah. How will Rav Chisda explain it?

(a) We cite Rebbi Elazar ben Azarya in a Beraisa, who quotes Rebbi Akiva's She'eilah with regard to a man who has relations with his wife who is a Nidah a number of times in one He'elam. What did Rebbi Eliezer reply, based on a 'Kal va'Chomer' from Shabbos?

(b) How did Rebbi Akiva query the 'Kal va'Chomer'. What makes Shabbos more stringent than Nidah in this regard?

(c) And what did Rebbi Akiva counter when Rebbi Eliezer tried to learn from ...

1. ... Nidos Ketanos, where one is Chayav for each Ketanah, even though there is only one type of sin?

2. ... someone who commits bestiality with one animal a number of times?

Hadran Alach 'Amru lo'

Perek Safek Achal

(a) What does our Mishnah say about someone who is uncertain as to whether he ate ...

1. ... Cheilev or not?

2. ... a Shi'ur of Cheilev or not?

3. ... the piece of Shuman that was lying in front of him or the piece of Cheilev?

(b) The Tana issues a similar ruling with regard to incest and Chilul Shabbos. What is the case regarding ...

1. ... incest?

2. ... Chilul Shabbos?

(a) Under what condition is one Chayav an Asham Taluy? What must he think at the time that he performed the act?

(b) What if he was uncertain already at the time that he performed it?

(c) What does the Mishnah say about somebody who eats ...

1. ... 'Cheilev twice? When will he have to bring only one Asham Taluy, and when will he have to bring two?

2. ... Cheilev, Dam, Pigul and Nosar in one He'elam? How many Ashamos Taluy will he have to bring?

(d) What principle governs the Din of Asham Taluy in this regard?

(a) Rav Asi establishes the case of 'Safek Achal Cheilev ... ' where a person ate the only piece that was lying before him. How does Chiya bar Rav explain the Mishnah?

(b) Initially, we establish their Machlokes over the Pasuk in Vayikra (in connection with Asham Taluy) "ve'As'sah Achas mi'Kol Mitzvos Hash-m". What do we mean when we say that ...

1. ... Rav Asi goes after 'Mesores'?

2. ... Chiya bar Rav goes after 'Mikra'?

(a) Rav Huna (or Chiya bar Rav) queries Rav Asi from the Mishnah itself, which continues 'Cheilev ve'Shuman Lefanav ... '. What does the question assume?

(b) What did Rav Asi (who was annoyed at the Kashya) answer them?

(c) How did he then answer the Kashya that having taught us that one is Chayav by Chatichah Achas, why did the Tana find it necessary to insert the case of 'Chatichah Achas mi'Sh'tei Chatichos'?

(d) On the other hand, why, according to Chiya bar Rav, does the Tana find it necessary to repeat the same case twice?

(a) What distinction does Rav Yehudah Amar Rav draw between Chatichah Achas and Chatichah Achas mi'Shetei Chatichos? Whose opinion is he following?

(b) What reason does Rabah attribute to Rav's ruling?

(c) Abaye queried Rav from a Beraisa, where Rebbi Eliezer obligates someone who eats the Cheilev of a Coy to bring an Asham Taluy. What is a Coy?

(d) What did Rabah answer?

(a) Abaye also queried Rav from a Mishnah ...

1. ... in Yevamos (in connection with a Yevamah who performed Yibum within three months of her husband's death) and who then becomes pregnant immediately. The Tana obligates the Yavam to divorce her, and to bring an Asham Taluy. Why is that?

2. ... in Nidah (in connection where after being intimate with one's wife, blood is found on one of their cloths). What is the Din if blood is found either on the man's cloth, on the woman's cloth immediately after the Bi'ah?

(b) And what will be the Din if blood is found on her cloth only a short while later? What does the Beraisa add to this?

(c) How did Rabah establish these rulings, to reconcile them with Rav, who requires 'Chatichah Achas mi'Sh'tei Chatichos'?

(a) Rebbi Zeira too, cites Rav like Rav Yehudah did earlier, only he ascribes a different reason to Rav's ruling, a reason that is based on logic. What is Rebbi Zeira's reason?

(b) Why is this necessary?

(c) What is the difference between the reason of Rebbi Zeira and that of Rabah (the Pasuk "Mitzvos")?

(d) Rebbi Yirmiyah asked Rebbi Zeira all three Kashyos that Abaye asked Rabah (from Coy, from Yevamah and from Nidah). What did Rebbi Zeira answer?