Rabbi Baruch Bodenheim: Gemara Sukkah: Fourth Perek, Monday night shiur, Rosh Chodesh Kislev, Daf 46a (11/13/23)

Conclusion Topic: Mitzvah Drabanan

Quickly Review גמרא דף מו. “והיכן צונו (second wide line) until רב נחמן בר יצחק 

Questions:

What is the difference in which pasuk we learn that we are commanded to listen to the rabanan? 

Is every Mitzvah drabanan a mitzvah dooraisa? 

We learnt a machlokes between the רמב״ם (ספר המצות שורש ראשון) and רמב”ן (on side of the רמב״ם)

https://hebrewbooks.org/pdfpager.aspx?req=58956&st=&pgnum=9

and רמב״ם הלכות ממרים פרק א הלכה ב

https://hebrewbooks.org/pdfpager.aspx?req=58968&st=&pgnum=112&hilite=

Rambam every Mitzvah drabanan is also commander to be adhered from the Torah with a Mitzvah aseh and lo saaseh 

The Ramban says absolutely not. It’s just an אסמכתא

Question:

According to the Ramban how does our Gemara answer the question how could we say וצונו when we perform a mitzvah drabanan?

Learn גמרא דף מו “ת”ר היו לפניו (eight lines from bottom of the Amud) until דף מו: “מיד תינוקות (two dots)

See גמרא ברכות דף מ  https://hebrewbooks.org/shas.aspx?mesechta=1&daf=40&format=pdf

which quotes the opinion of ר”י that one should make a separate bracha on each vegetable that he eats and learns it from the pasuk ברוך ה’ יום יום similar to how ר”י explains the obligation to make a bracha on each mitzvah independently. 

Question:

There seems to be a contradiction in ruling as our Gemara rules like ר”י yet the Gemara brachos rules the halacha is not like ר”י? 

Learn ערוך לנר “הלכתא כר”י for an answer.

https://hebrewbooks.org/pdfpager.aspx?req=14414&st=&pgnum=178

Why is the opposite of normal nature true in regards to understanding Torah (a mind filled with Torah can absorb more Torah)?

Learn מהרש”א ברכות דף מ. “אם שמוע

https://hebrewbooks.org/pdfpager.aspx?req=14308&st=&pgnum=266

How was ר”ע and ריב”ז able to start learning at the age of 40?