10a) [line 1] SHE'ER HA'BA MIMENU - the descendants (lit. flesh) who issue from him (i.e. his daughter from a woman to whom he was not married, the daughter of his son from a woman to whom he was not married and the daughter of his daughter from a woman to whom he was not married)
    b) [line 2] SHE'ER HA'BA MIMENAH - the descendants (lit. flesh) who issue from her (his wife) (i.e. his wife's daughter, the daughter of his wife's son and the daughter of his wife's daughter)

11) [line 5] ASYA "HENAH" "HENAH"; ASYA "ZIMAH" "ZIMAH" - it comes through the double Gezeirah Shavah that compares two verses that contain the word "Henah" and two verses that contain the word "Zimah"
(a) Chazal (here and Yevamos 3a) use a double Gezeirah Shavah to prove that relations between a man and his daughter (who is not his wife's daughter) or with his granddaughter (who is not his wife's granddaughter) incurs the capital punishment of Sereifah, a fact that is not explicit in the verses. The Halachos that a Gezeirah Shavah teaches, however, are considered as if they are explicit in the verses.
(b) The verse that prohibits relations between a man and his granddaughter (who is not his wife's granddaughter) states, "Ki Ervascha Henah" - "since they are your close relatives (lit. nakedness)" (Vayikra 18:10). Likewise, the verse that prohibits relations between a man and his wife's daughter and granddaughter (whether they are his descendants or not) states, "Sha'arah Henah, Zimah Hi" - "*they are* your relatives (lit. flesh), it is the conduct of wrongdoers" (Vayikra 18:17). Just as the second verse contains the word "Zimah," the Gezeirah Shavah makes us consider the first verse as if it, too, also contains the word "Zimah." (And therefore, just as the second verse includes the daughter and the granddaughter, so, too, the prohibition of the first verse includes the man's granddaughter and his daughter.)
(c) Next, the verse that specifies the punishment of Sereifah for relations between a man and two women who are mother and daughter states, "Zimah Hi, ba'Esh Yisrefu" - "it is the conduct of wrongdoers, they shall be burned by fire" (Vayikra 20:14). As a result of this Gezeirah Shavah, all of those who transgress the above forbidden relations receive the Sereifah punishment.

12) [line 13] MINAYIN LA'ASOS SHELOSHAH DOROS L'MA'ALAH KI'SHELOSHAH DOROS L'MATAH? - From where do we learn that the woman who is in the third generation above a man's wife (i.e. his wife's mother's mother) is likened to the woman who is the third generation below a man's wife (i.e. his daughter's daughter or his son's daughter) [and she is prohibited to him and he and she receive Sereifah if they have illicit relations together]?
13) [line 14] NE'EMAR L'MATAH ZIMAH V'NE'EMAR L'MA'ALAH ZIMAH - it states below (in the verse dealing with the lower generations, Vayikra 18:17) "Zimah" and it states above (in the verse dealing with upper generations, Vayikra 20:14) "Zimah"
14a) [line 15] U'MAH B'ONESH ASAH L'MATAH K'L'MA'ALAH - and just like in the punishment (Sereifah) [the woman of the third generation] below is learned from (lit. is made like) [the woman of the third generation] above (Sereifah is written in the verse regarding a man who has relations with his mother-in-law - Vayikra 20:14)
    b) [line 16] AF B'AZHARAH NAMI ASAH L'MA'ALAH K'L'MATAH - so, too, in the Azharah (the negative commandment) [the woman of the third generation] above is learned from (lit. is made like) [the woman of the third generation] below (the Azharah is the verse regarding a man who has relation with his wife's daughter and granddaughter - Vayikra 18:17)
15) [line 17] U'MAI L'MATAH? L'MATAH B'ISUR - and what does the word "l'Matah" mean? "lower in [the stringency of the] prohibition"
16a) [line 17] IY MAH HI EM IMAH ASURAH - But just as [with regard to] her (the man's wife), her mother's mother is prohibited to him (as an Ervah)
    b) [line 18] AF HU EM IMO ASURAH? - so should his own mother's mother be prohibited to him (as an Ervah)? (But the Mishnah - Yevamos 21a - lists one's mother's mother as a Sheniyah, who is only prohibited mid'Rabanan!)

17a) [line 20] DON MINAH U'MINAH
Judge from it and [entirely] from it, i.e. an analogy must be carried through so that the case deduced agrees throughout with the case from which the deduction was made.

    b) [line 20] DON MINAH V'UKI B'ASRAH
Judge from it but place the deduction in its own context, i.e. let the case deduced by analogy be regulated by the rules that are appropriate to that case itself.