Question (Ri of Orlins): We should include Havdalah in the Klal [the Berachah that encompasses the 13 middle Berachos]!

Citation (Berachos 29a): The entire year, one may pray Havineinu, except for Motza'ei Shabbos, when one must say Havdalah in Chonen ha'Da'as;

Citation (cont.) Question: We should include it in the Klal! This is left difficult.

Answer (Ri): There, since one may pray Havineinu the entire year, we should not change the norm, since we can include [Havdalah in Chonen ha'Da'as];

Here, [R. Chanina ben Gamliel] holds that the entire year one must pray 18 full Berachos. For any small reason, we do not change the norm.

Therefore, on Motza'ei Shabbos, one must pray 18 full Berachos, since he must say Havdalah in Chonen ha'Da'as.

Question: Even if we say that the case is that he did not pray, Rabanan's opinion is difficult!

Above, Rabanan who argue with R. Yosi said only until Minchah, even though he did not pray. If so, Rabanan contradict themselves!

We conclude that this is like R. Yosi b'Rebbi Yehudah, so we cannot ask from the Rabanan of R. Yosi bar Yehudah against the Rabanan of R. Yosi bar Chalafta.

However, we initially thought that both of them are R. Yosi bar Chalafta. If so, there was a contradiction in Rabanan!

Answer: Granted, if we would say that in both cases he did not pray, the contradiction in Rabanan would not be difficult. We could say that they enacted to pray Ne'ilah during the day after Minchah, or at night, however one prefers;

Above we said only until Minchah. This is when he intends to pray [Ne'ilah] at night.

Here we said the entire day. This is when he intends to pray [Ne'ilah] during the day, so he will be ready to eat at the beginning of the night.

Implied question: (Why did Chachamim permit him to immerse during the day?) He could wait until night, and immerse and pray then!

Answer: Chachamim permitted him to immerse on Yom Kipur and pray, because they forbade bathing only for pleasure;

For the sake of Tefilah, or so he will be ready to eat at the beginning of the night, one may immerse and pray during the day,

However, [we ask] since we establish the case to be that he prayed, what is Rabanan's reason?

Question: The Gemara could have asked from Rabanan above to Rabanan here!

Above, they said that even if he did not pray, he may not immerse after Minchah. Here they say that even if he already prayed, he may immerse!

Answer: We can say that above, we permit until Minchah, i.e. for the sake of Tefilah he needs to immerse only until Minchah. It teaches that Tefilas Ne'ilah is [even] at night.

However, he should immerse due to Tevilah bi'Zmanah Mitzvah.

Consequence: This affects one who was unable to immerse during the day due to Ones. He should not omit Tefilas Ne'ilah;

According to R. Yosi, if he cannot immerse during the day, he does not pray Ne'ilah at all.

Implied question: Why don't we ask also from Rabanan, who hold that it is a Mitzvah, but in the Beraisa, they hold that it is not a Mitzvah?

Answer: Above they say that it is a Mitzvah, and one should not intentionally transgress the time b'Mezid. Therefore, they say that he immerses [even] after Minchah;

However, regarding their opinion that they should pursue a reed, it is not definite that this will push off the Tevilah [until tomorrow]. Also, this is for the honor of Hash-m's name;

However, from R. Yosi we asked all the more so! (Normally he holds that Tevilah bi'Zmanah Lav Mitzvah, yet he does not require pursuing a reed before immersing.)

Explanation: A hint of this is "Yir"eh Zera Ya'arich Yomim."