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Rav Ashi to Rav Kahana: Less than a tefach cannot be knocked down by Chavot Remi?! We learned in a Beraisa:

If the boards were not level, one was higher than the other: We look at the boards as if they were on the same level. As long as the higher board is not above 20 amos, and the lower board is not below 10 tefachim, we consider them to be on the same level and if they can hold a brick together, another board is not necessary.”

So we see that as long as both boards are between 10 tefachim and 20 amos, we can apply “Chavot Remi” even though they are less than a tefach wide!

Summary

Rav Kahana to Rav Ashi: The principle here is not Chavot Remi but lavud. The beraisa must be understood as follows: As long as the higher board is not above 20 amos, and is within 3 tefachim of the lower board, or, the lower board is not below 10 tefachim , and is within 3 tefachim of the upper board, we consider them to be on the same level. But if there are 3 tefachim between the boards, since they’re not a tefach wide, we cannot apply the principle of Chavot Remi.

We learned in the mishna 19.2: A sukkah whose “shade is more than its sunlight”, is kosher.

But if the shade is equal to the sunlight, the sukkah would be possul.

Challenge: In the first perek (1.1) we learned “A Sukkah whose schach lets in more sunshine than shade, is possul.” which implies that if the sunshine is equal to the shade it would be kosher!

Resolution: Our mishna implies the law in a case where the shade and the sunshine are equal above. The first perek where it seems that when the shade and sunshine are equal, the sukkah is kosher, is referring to the shade below.

Rav Papa: As people say “An aperture the size of a quarter above, seems like a half-dollar below”.

We learned in the mishna 19.2: A sukkah whose schach is thick like a solid roof is kosher even though the stars cannot be viewed from inside the sukkah.

Beraisa: A sukkah whose schach is thick like a solid roof is kosher even though the stars cannot be viewed from inside the sukkah. If however the sun rays cannot be seen through the roof: It is possul according to Beis Shammai.

Beis Hillel: It is kosher. This podcast has been graciously sponsored by JewishPodcasts.fm. There is much overhead to maintain this service so please help us continue our goal of helping Jewish lecturers become podcasters and support us with a donation: https://thechesedfund.com/jewishpodcasts/donate