Rif Succah 3b {Succah 7b continues}

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3b

{Succah 7b continues}
that a succah needs to be a permanent dwelling.

Rabbi Yoshiya, this that we have said.

Rabbi (, what is it?) - this that they learnt {in a brayta}: Rabbi states that any succah which does not have in it 4 cubits X 4 cubits is invalid.

Rabbi Yehuda - this that they learnt {in the Mishna}: A succah which is higher than 20 cubits is invalid. And Raabi Yehuda considers it valid.

And Rabbi Shimon - for they learnt {in a brayta}: Two {walls} according to their law and the third even a handbreadth; Rabbi Shimon says: Three according to their law and the fourth even a handbreadth.

Rabban Gamliel - this that they learnt {in a brayta}: One who makes his succah atop a wagon or atop a boat -- Rabban Gamliel invalidates and Rabbi Akiva validates.

Bet Shammai - for they learnt {in a Mishna}: One whose head and majority {of his body} was in the succah and his table was in the house -- Bet Shammai invalidate and Bet Hillel validate.

Rabbi Eliezer - for they learnt {in a Mishna}: One who makes his succah like a tzrif {= a teepee} or who leans it against the wall -- Rabbi Eliezer invalidates because it lacks a roof, and the Sages validate.

"Others" - for they learnt {in a brayta}: Others say: A succah constructed {round} like a dovecote is invalid because it lacks a corner.

Even though we establish that all of these are in line with a single position, and the halacha is {therefore} not like any of them, here there are two of them which are actually halacha:

One of them is he who makes his succah in the form of a tzrif {teepee}, for we establish that the Mishna is a lone opinion, and the brayta reverses it - that learnt {in a brayta}: Rabbi Eliezer validates and the Sages invalidate.

And it is not because the Sages maintain that a succah needs to be a permanent dwelling, but rather, this is the reason that the Sages invalidate: the incline of tents is not reckoned to be equal to the tents {and the entire teepee inclines}. And Rabbi Eliezer maintains that the incline of tents is like tents.

And the other {instance in which we rule that this is the halacha} is: One whose head and majority {of his body} was in the succah and his table was within the house -