Thursday, 6 June 2013

eruvin 90

when is a roof like a boat?
and when is a boat like a roof?

comparing roofs and boats as places of residencies.

how far can you carry on a roof? the entire roof, or just within 4 cubits?

do the walls of the boat extend down to enclose the space?
or the partitions of the roof extend up to create a space?

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