Study Eruvin folio 73B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
And if they merged the courtyards of the alleyway, they are permitted to carry both here, in the alleyway, and there, in the courtyards.
If they established an eiruv in the courtyards and also merged the courtyards of the alleyway, and one of the residents of the courtyard forgot and did not contribute to the eiruv in his courtyard, but did participate in the merging of the courtyards in the alleyway, they are permitted both here and
However, if one of the residents of the alleyway forgot and did not participate in the merging of courtyards that open into the alleyway, they are permitted to carry in the courtyards and prohibited from carrying in the alleyway, as the principle is: An alleyway is to its courtyards as a courtyard i
Talmud: The Talmud asks: In accordance with whose opinion is this Mishnah? The Talmud answers: It is in accordance with the opinion of R' Meir, who said: We require an eiruv and we also require a merging of the courtyards in an alleyway, and one is not sufficient without the other.
The Talmud asks: If so, say the middle clause of the Mishnah: And if they merged the courtyards in the alleyway, they are permitted to carry both here and there. We have arrived at the opinion of the Rabbis, who say that one is enough, and one does not need both an eiruv and a merging of alleyways.