Beis Rabeinu of Bavel Sicha

B”H

Hi

I had some questions on Beis rabeinu shebebavel sicha that I haven’t been able to find an answer to anywhere, hopefully you know and can help

1) what exactly the chidush of sif aleph is, since the simple meaning is that ry and re are in fact arguing. If they are arguing then what’s the basis of each of their opinions, and what specifically is the chidush that they’re not arguing?

Seemingly the reasoning of ry is from note 4 about “maon atah”, referring to specifically synagogues (and I guess lesser levels of beis midrashim?) And by note 5 by re it just brings that beis rabeinu is the house of rav, wasn’t sure if that was also meant to imply a reasoning of some kind, but in general the question is just what’s the reasoning of each one and how do we know they’re not arguing, and if they’re not arguing then went are they still two different statements.

2) Also seemingly it would appear that part of the proof is when abaye said “don’t say here AND here, rather here OR there”, even though he should also agree that the Shechinah is also in other places, but why can’t we say that abaye is just following the opinion of re (until he heard the drasha of “maon atah”). And is it significant that neither Rashi or metsudos to Yechezkiel mention beis rabeinu?

3) also if they are not plug, then what is the proof that even rabbi blazer would agree that even the other synagogues are mikdash miat? we explained acc. to ry the special advantage of Beis rabeinu, but still im not sure how we proved re agrees with ry. this also goes back to the essential question which is what’s the initial understanding of each of their reasoning’s both before and after we thought they’re arguing.

4) what’s the difference between the “Beis harnesses and Beis hamidrash” of rabeinu, and “Beis” rabeinu? is that difference part of the chiddush?