תלמוד על שבת 15:4

It was stated:¹⁰⁶Tosephta 2:15, about the eruv deposited in a tower when the key was lost. “Rebbi Eliezer¹⁰⁷With G and the Tosephta read: Eleazar. says, if it was lost in the field his eruv is not a [valid] eruv; if it was lost in town his eruv is a [valid] eruv.” If it was lost in the field his eruv is not a [valid] eruv, for he cannot bring it¹⁰⁸A replacement key. in a Sabbath way. If it was lost in town his eruv is a [valid] eruv, for he can bring it through exempt space¹⁰⁹Since the roofs of houses are exempt space (Šabbat 1 Note 109), in theory one may move things there even without an eruv by climbing over rooftops.. Rebbi Eleazar said it correctly: what is the reason (of Rav) [of the rabbis]¹¹⁰The correct reading is that of G [in brackets]. The rabbis are the opponents of R. Eleazar in the Tosephta.? Rebbi Abba the son of Rav Pappai said, it is Rebbi Meïr’s since Rebbi Meïr said, “he even originally reduces and takes.¹¹¹Mishnah Besah 4:3. If produce is stored in a makeshift building formed by bricks without mortar, R. Meïr permits removing bricks to create an opening to get to the produce.” Rebbi Meïr said this only for a holiday, maybe for the Sabbath¹¹²It is true that removing bricks which were laid without mortar cannot be classified as destroying a building by biblical standards, but this does not imply that the rabbinic prohibition of this activity was waved on a Sabbath where preparation of food is forbidden.? But here we are concerned with the Sabbath! Rebbi Abba Mari said, it is Rebbi Eliezer ben Jacob’s, as we have stated there¹¹³Mishnah Šabbat 15:2, Note 6., “Rebbi Eliezer ben Jacob said, one may tie in front of an animal that it should not leave.” There is no difference between tying and locking. That means, about a stone tower. But for a wooden tower he is like one who breaks the amphora to eat dried figs from it¹¹⁴Which is permitted on the Sabbath, Mishnah Šabbat 22:3. Quoted Tosaphot 34b s. v. ואמאי..