Answer (R. Zeira): Rebbi argues only about the death penalty, but he agrees that if she was single, all the men pay the fine for raping or seducing an unmarried virgin.

Question: Why is the Halachah different regarding the fine than regarding the death penalty?

Answer: Regarding death, it says "the man who lied with her will die alone" (i.e. only the first man is stoned).

Question: What do Chachamim learn from "alone"?

Answer: They expound like R. Yonasan:

(Beraisa - R. Oshaya): "Both of them will die" only if they are both fitting to be executed (i.e. both are adults);

R. Yonasan says, "the man who lied with her will die alone"

Question: How does R. Yochanan learn Rebbi's law?

Answer: The Torah should have written 'That had Bi'ah with a man'; by writing "with a husband", it allows us to learn another law.

Question: Does the beginning of Bi'ah Mekadesh, or the end?

This affects a woman who received Kidushin money from Shimon while having Bi'ah (to make Kidushin) with Reuven.

Also, this affects a Kohen Gadol who is Mekadesh a virgin with Bi'ah. (If he does not acquire her until the end of Bi'ah, she is no longer a virgin, and she is forbidden to him.)

Answer (Ameimar): Anyone who has Bi'ah intends for a full act of Bi'ah (he acquires at the end).

Question: Does Bi'ah make Kidushin, or Nisu'in?

If it makes Nisu'in, her husband inherits her, becomes Tamei to engage in her burial (even) if he a Kohen, and can annul her vows (alone);

If she is only Mekudeshes, the above do not apply.

Answer #1 (Abaye - Mishnah): A man has the right to be Mekadesh his (minor) daughter to another man, through taking money (and he keeps the money), a document, or Bi'ah;

He receives Metzi'os (Hefker objects) that she finds, and her earnings;

He can annul her vows;

If her husband divorces her during Erusin, he (her father) receives the Get;

He does not eat the Peros (yield) of her property in her lifetime.

If she makes Nisu'in, her husband (gets privileges 1 and 2, and) additionally receives the Peros of her property in her lifetime.

The Beraisa teaches about Kidushin through Bi'ah, and later mentions Nisu'in. This shows that Bi'ah is only Mekadesh.

Rejection: Marriage is mentioned regarding Kidushin through money or a document, but Bi'ah itself makes Nisu'in.

Answer #2 (Rava - Mishnah): A girl three years old and one day can be Mekudeshes with Bi'ah. If she falls to Yibum, her Yavam acquires her through Bi'ah;

A stranger who has Bi'ah with her is liable for Bi'ah with a married woman;

One who has Bi'ah with her when she is Nidah becomes Tamei, and then he is Metamei (light) Tum'ah to all mattresses below him;

If she marries a Kohen, she may eat Terumah;

If any Ervah (relative) punishable by death has Bi'ah with her, he is killed, and she is exempt;

If she has Bi'ah with anyone forbidden to her, she is disqualified from Kehunah.

The Mishnah teaches Kidushin through Bi'ah, and later mentions Nisu'in. This shows that Bi'ah is only Mekadesh.

Rejection: The Mishnah teaches that if her Nisu'in is to a Kohen, she eats Terumah.

Answer #3 (Beraisa - R. Yochanan ben Bag Bag, to Rebbi Yehudah ben Beseira): I heard that you permit a Bas Yisrael Mekudeshes to a Kohen to eat Terumah. Is this true?

Rebbi Yehudah ben Beseira: do not you agree that a Kal va'Chomer permits?! If a Kohen has Bi'ah with a Shifchah (Kena'anis, to try to acquire her), she does not eat Terumah. If he acquires her through money, she eats;

If he acquires a Bas Yisrael through Bi'ah, she eats Terumah. All the more so, if he acquires her through money, she should eat!

However, Chachamim decreed that she does not eat until Chupah.

Question: In which case did Rebbi Yehudah say that mid'Oraisa she eats Terumah if he acquired her through Bi'ah?

If after he acquired her through Bi'ah (or money) she had Chupah, she eats even mid'Rabanan (there is no decree)!

Answer #1: Rather, she eats after Bi'ah with Chupah, but not after money without Chupah.

Rejection: If so, the Kal va'Chomer is invalid! Regarding Bi'ah, she eats after two Kinyanim. Regarding money, there was only one Kinyan!

Answer #2: Rather, it refers to Bi'ah (or money) without Chupah

If Bi'ah makes Nisu'in, we understand why it is more obvious that she eats after Bi'ah than after money.

Culmination of Answer (a): If Bi'ah made only Kidushin, it would not be more obvious that she eats after Bi'ah than after money?

Rejection (Rav Nachman bar Yitzchak): Really, Rebbi Yehudah discusses Bi'ah with Chupah, and money without Chupah. Even though regarding Bi'ah there were two acquisitions, and regarding money there was only one, the Kal va'Chomer is valid (like we explain):

Bi'ah with a Shifchah does not permit her to eat Terumah, even if she had Chupah. If he acquired her through money, she eats without Chupah

If he acquired a Bas Yisrael through Bi'ah and Chupah, she eats Terumah. All the more so, if he acquires her through money alone, she should eat!

However, Chachamim decreed that she does not eat until Chupah, due to Ula's concern (lest she share her Terumah with her siblings).

Ben Bag Bag rejects the Kal va'Chomer. Money fully acquires a Shifchah, but Kidushei Kesef does not fully acquire. Chupah is needed to complete the Kinyan!

(Ravina): Ben Bag Bag knew that that mid'Oraisa, she eats. He had heard that Rebbi Yehudah ben Beseira permits her even mid'Rabanan. This was the dialogue:

Ben Bag Bag: Do you permit a Bas Yisrael Arusah to a Kohen to eat, without concern lest a blemish be found in her that would disqualify the Kidushin?

Rebbi Yehudah ben Beseira: Yes, a Kal va'Chomer teaches this:

If the Kohen had Bi'ah with a Shifchah, she does not eat Terumah. If he acquired her through money, she eats, and we are not concerned for a blemish;

If he acquired a Bas Yisrael through Bi'ah, she eats Terumah. All the more so, if he acquired her through money alone, she should eat, without concern for a blemish!

However, Chachamim decreed that she does not eat until Chupah, due to Ula's concern (lest she share her Terumah with her siblings, who may not eat it).