Reference for Eruvin 27:22

והאיכא משהו כי קא חשיב מגואי קא חשיב

and its curve above twenty, or if it was above ten cubits<span class="x" onmousemove="('comment',' From the ground.');">²¹</span> but its curve was below ten, attention must be paid [to this]:<span class="x" onmousemove="('comment',' Lit., ' (we) see'.');">²²</span>

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