Eruvin 11: Doorways of... Eruvin
Terminology: Tzurat ha-petach. Pitachei shima'ei. Avkata. The need to visualize, and how that plays out, runs throughout the daf. So, what type of space does "tzurat ha-petach" permit? What does it have to look like? How like a door must it be? 2 lechis and a koreh do, fundamentally, create a doorway... Also, the case of an arch, as part of tzurat ha-petach. And: a strange story about R. Nachman, R. Sheshet, R. Gadda, and the Resh Galuta. What is the nature of your arch, on terms of determining its need for a greater distance across (as on this example). Plus: More on the basic case of what…
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