Discussion of Ramban - 18:6, 18:18, 18:19 - debate between Rambam/Ibn Ezra versus Ramban why incest is prohibited, and discussion whether Ramban authored Iggeret Kodesh with a positive attitude towards sexual relations

Explanation of Ramban - 12:2, 12:4, 18:19, Bereishit 31:35 - discussion of Ramban's medical theory that there are toxins in menstrual blood, and the Dvar Avraham of Kovno's 1936 speech defending this notion based on the contemporaneous scientific notion of menotoxins.

Explanation of Ramban - 11:9 - Ramban's stringency that the scales of fish must be peelable, and the debate based on this whether sturgeon and swordfish are kosher, and the story surrounding Noda Biyehuda's permitting sturgeon.

Explanation of Ramban - 1:9 - debate between Rambam vs. Ramban what the reason for animal sacrifice is.

Explanation of Ramban - 7:16 - about Ramban's halachic innovation that even Korban meat which can be eaten for 2 days, there's a mitzva to eat it on the first day specifically. And the Chacham Tzvi's extension of this to the Chagiga of the Seder, that must be able to be eaten on Erev Pesach

Explanation of Ramban - 40:2, 40:17, Vayikra 8:2 - debate between Rashi/Ramban vs. Ibn Ezra what date the Mishkan was inaugurated, and debate between Rashi vs. Ibn Ezra/Ramban when Shemos ch. 40 happened

Explanation of Ramban - 31:13, 35:2 - debate between Rashi and Ramban how we know it's forbidden to build the Mishkan on Shabbos, and Meshech Chochma's explanation as to why in Ki Tisa the Mishkan precedes Shabbos, and in Vayakhel it's reversed.

Explanation of Ramban - 32:1, 32:4, 32:5, 32:6, 32:21, 32:22 - reconstruction of the views of Rashi, Ibn Ezra and Ramban about what the sin of the golden calf was and what Ahron's role in it was.