[Avodah] Shiur for Kesem today

[Zev Sero via Avodah]

On 05/15/2016 10:12 AM, Akiva Miller via Avodah wrote:
> (For comparison, I suppose one might compare it to certain concepts
> in Eruvin, which might stretch credulity if hotzaah were a melacha
> d'Oraisa. [Tzuras Hapesach: An area is called "enclosed" because it
> is surrounded by doorless doorways. Puhleeze!] But since Eruvin only
> works where hotzaah is d'rabanan, they pretty much had carte blanche
> to set it up however they wanted.)

This is not true.  Mid'oraisa tzuras hapesach works in a reshus horabim
de'oraisa.  That one can't fix a r"hr simply by putting up four poles and
four strings is mid'rabanan.

-- 
Zev Sero               Meaningless combinations of words do not acquire
zev at sero.name          meaning merely by appending them to the two other
                        words `God can'.  Nonsense remains nonsense, even
                        when we talk it about God.   -- C S Lewis