Scholar of Shulchan Aruch HaRav and director of the Chabad Library
Rabbi Sholom Dovber Levin on the Alter Rebbe, Reshus Harabim, and City Eruvin
Rabbi Sholom Dovber Levin has published a detailed study of city eruvin according to the Alter Rebbe and released the Yagdil Torah packet containing a previously unpublished response.
City eruvin according to the Alter Rebbe
Rabbi Levin's study follows the laws of eruvin in Shulchan Aruch HaRav into the physical setting of a modern city. It examines reshus harabim, shishim ribo, roads sixteen amos wide, bridges, walls, openings, and the use of tzuras hapesach.
The value of the study is its insistence that the conditions be considered together. A city cannot be permitted by isolating one favorable feature while ignoring roads that break through the boundary, large gaps, or a reshus harabim that cannot be enclosed by ordinary doorframes.
The Crown Heights setting
Crown Heights is part of Brooklyn's continuous urban street system. Its avenues and connecting roads must be considered in relation to the city around them and to the lines drawn on a proposed neighborhood route.
Rabbi Levin's analysis provides the halachic framework for these questions. The Crown Heights Beis Din gives the practical decision: the advertised eruv may not be relied upon.
The Yagdil Torah response
Rabbi Levin also published the complete Yagdil Torah packet concerning a typed eruv response submitted for publication. On the proposal to print it, the Rebbe wrote k'pashut lo—plainly, no.
The packet includes the proposed text, the question surrounding its publication, and the Rebbe's notation. Reading the complete sequence is more useful than treating the two words as an isolated slogan.