VOWS THAT AFFECT BI'AH
Answer (Rav Nachman - Mishnah): If she said 'I will not have Bi'ah with any Yisrael', he annuls the part of the vow relevant to him, and she is forbidden to have Bi'ah with any other Yisrael (even after she is widowed or divorced).
If it is a vow of affliction, the vow should be annulled entirely!
Conclusion: Rather, it is a vow between them.
Rejection: That Mishnah is like R. Yosi. We ask about Chachamim.
(Rav Huna): R. Yosi taught all the Mishnayos in this Perek.
Question: How does Rav Huna know this?
Answer: The Mishnah begins 'R. Yosi says...' Why does the Mishnah later say 'this is R. Yosi's opinion'? This teaches that R. Yosi taught the entire Perek.
(Shmuel): A man can annul all his wife's vows, except for 'Ploni may not benefit from me.'
He can annul 'I will not benefit from Ploni.'
Question #1 (Mishnah): If she said 'Peros of this province are forbidden to me', he (cannot annul, rather he) brings to her from another province.
Answer #1 (Rav Yosef): The case is, she said 'Peros of this province are forbidden to me if you bring them.' (It is possible for her to enjoy the Peros, unlike Shmuel's case 'I will not benefit from Ploni.')
Question #2 (Mishnah): If she said 'Peros of this grocer are forbidden to me', he cannot annul.'
Answer #1: Here also, the case is, she said '... if you bring them.'
Objection (Seifa): If he gets all his Peros from this grocer, he can annul. If she stipulated '... if you bring them', why can he annul?
Since in the Seifa she did not say 'if you bring them', the same applies to the Reisha ('Peros of this grocer are forbidden to me')!
Answer #2 (to Questions 1 and 2): Indeed, she forbade the Peros, even when she brings them herself;
The Mishnah is like R. Yosi. Shmuel's law is according to Chachamim.
(Rav Huna): All Mishnayos in our Perek are like R. Yosi.
The Mishnah says 'he cannot annul', i.e. due to affliction (for this is not affliction). He can annul because it is a vow between them. (Some say that this is a third answer.)
VOWS THAT INCLUDE AFFLICTION
(Rav Yehudah): If a woman vowed not to eat either of two loaves, and she longs to eat one, but she has no desire for the other, since her husband can annul the vow regarding the loaf she wants, he can annul the entire vow.
Version #1 (Rav Asi, citing R. Yochanan): He can annul only regarding the one she wants.
Version #2 - Question (Rav Asi): In this case, what is the law?
Answer (R. Yochanan): He can annul only regarding the one she wants.