Question (R. Chagai, to R. Yosah): "Im Lo'' is like "after'' (R. Meir agrees that Tenai Kaful is not needed when one says "after''. Since Moshe said "Im Lo'', why did he need to double the Tenai?)

Answer (R. Yosah): The land was in front of them (they were Muchzak in it), and he sought to take it from them [if they will not fight valiantly].

(R. Yehudah ben Shalom citing R. Yudah ben Pazi citing R. Yochanan): In documents [we write a Tenai Kaful] like R. Meir's opinion about Kidushin.

Question (R. Yirmeyah citing R. Chinena, the colleague of Rabanan): Why do you say that this is like R. Meir? It is even like Rabanan!

Didn't R. Avahu say in the name of R. Yochanan that the order of a Kidushin document is "I, Ploni ben Ploni, am Mekadesh you, Plonis bas Ploni, on condition that I give to a certain matter and enter you [to Chupah] on the day Ploni.'' If that day comes and I do not enter you, I have no [claims] on you (to get back the gift. This is like Rabanan, who say that when one says "on condition that'', he need not double the Tenai.)

Question: [Why did he double the latter Tenai about when he will make Chupah? Also for this,] he should say "on condition that'', and not need to double his Tenai!

Answer: If he does not double his Tenai, does he uproot the Kidushin [and she will keep the gift?! We explained this like CHASAM SOFER.]

Question (R. Yosi bei R. Bun): Everywhere, R. Meir holds that from the negative you infer the positive, and here he does not hold so!

Answer (R. Masniyah): It is a stringency of Arayos.

Question: If [one placed two Eruvin, and] he did not stipulate [what is the law]?

Answer: We learn from the following. If one was Me'arev between (i.e. placed an Eruv for each of) two Techumim, he may go to the south according to [what is permitted based on] his Eruv in the north, and [he may go to the north] according to his Eruv in the south;

If he put the Eruvin at opposite extremes of the Techum, he may not move from his place. (If one was 2000 Amos to the south, and the other was 2000 Amos to the north, he may not go at all to the north or south. Since he uprooted himself from the Techum of the city, he may not traverse the entire city - PNEI MOSHE. If one was at the end of the Techum in the northeast, and one at the end in the southwest, he may not go in any direction - PF.)

An animal of two partners - if this one was Me'arev in the north, and this one was Me'arev in the south, it may go (i.e. one may take it on Yom Tov) to the south according this one's Eruv in the north, and to the north according to this one's Eruv in the south. If the Eruvin are at opposite extremes of the Techum, it may not move from its place.

If they slaughtered it - Rav says that the limbs nurture from each other [so even after they divide the meat, one may not take his share past where it could go when it was alive]. Ula bar Shmuel says, the limbs do not nurture from each other (each may take his share wherever he may go).

Rav agrees about a barrel [that when they divide, each] gets his initial share [so he may take it wherever he may go].

Our Mishnah means 'if Nochrim came from both directions... if they did not come, not from here and not from here.' (He does not stipulate if they will come. If he did, he may not go in either direction, for he does not know whether or not they will come! - PNEI MEIR)

[Our text of the Mishnah says] if Nochrim came from the east, my Eruv is in the west. Some teach "it is in the east.''

The one who teaches in the east, it discusses governors of the city (one must go to them to petition them). The one who teaches in the west, it discusses plunderers (one must flee from them).

(Mishnah): One may say 'if a Chacham came from the east, my Eruv is in the east. If a Chacham came from the west, my Eruv is in the west. If Chachamim come from both directions, I will go where I want. If no Chacham comes, I am like people of my city.'

R. Yehudah says, if one of the Chachamim is his Rebbi, he may go in the direction of his Rebbi. If both are his Rebbi'im, he may go in whichever direction he wants.

(Gemara): Some teach ["if a Chacham came from the east,] my Eruv is in the west.'' The one who teaches in the east, it discusses these [great] Chachamim (he wants to go learn from him). The one who teaches in the west, it discusses a common [Chacham equal to the Me'arev. The Me'arev wants to go to the opposite direction, to teach, so people in both directions will learn - PNEI MEIR.]