האי כשורא דמטללתא – This beam of a (temporary) hut
Summary:
In a case of סמך לו כותל and then he placed a כשורא דמטללתא over the party wall; if it remained there for (over) thirty days he is בחזקת שנתן.
מהו דתימא מצי אמר ליה שקול אוזינקא כולי – You may have said, that he can tell him ‘here, take your expenses, etc’.
Summary:
When there are two people on opposite sides of a רה"ר either one of then can coerce the other to accept the proposition that one build the entire wall and the other pay for half the expenses.
שתי חצירות זו למעלה מזו – Two courtyards one above the other.
Summary:
There are two ways to understand why the תחתון must build up to ד' אמות above the ground level of the חצר העליון. A. The חצר of the תחתון slopes upwards as it recedes from the dividing wall enabling the תחתון to see over the lower wall. B. The תחתון can (usually) see the עליון above the lower wall when the עליון stands up.