A community may dismantle a summer ביכנ"ס for a winter one (and vice versa.
If there is both a summer and winter ביכנ"ס they may be dismantled out of season if there is a need for (minor) repairs. This is the first opinion of תוספות.
The other opinion(s) of תוספות is that they may be dismantled out of season regardless, whether it needs repair work or not.
ועייליה לפורייה להתם – And he brought in his bed there.
It is forbidden to do any secular activity in a ביכנ"ס even in בבל. The provisions that were made for the בתכנ"ס of בבל was that one may make respectful use of them once they are destroyed, and no longer function. רב אשי placed his bed and slept in a room adjoining the ביכנ"ס proper; not in the ביכנ"ס itself.
כל דאמר מבית חשמונאי אתינא עבדא הוא – Anyone who claims that he is a descendant from the house of the חשמונאים, is really a slave.
An עובד כוכבים or an עבד כנעני who fathers a child from a ישראלית, the child is a ולד כשר according to שמואל.
תוספות maintains that none of the descendants of הורדוס married Jewish women, including the father of אגריפס. Therefore they are all עבדים.
The reign of הורדוס dynasty lasted the last one hundred three years of the בית שני. The נשיאות of הלל and his sons was during the last hundred years of the בית שני. The בני בתירה were נשיאים when הלל arrived from בבל and became the נשיא. Therefore, הורדוס did not kill all the רבנן.