Reference for Eruvin 177:9

סבור מינה אפילו מכתשת ואפילו גיגית

should not this<span class="x" onmousemove="('comment',' R. Meir's ruling.');">²²</span> also apply to a roof that was TEN HAND BREADTHS HIGHER OR LOWER? 'You have not heard', Abaye said to them, 'the following statement made by R'Isaac B'Abdimi: R'Meir always maintained that wherever you find two domains of the same character<span class="x" onmousemove="('comment',' Lit., 'and they are one domain'.');">²³</span> [one within the other] as, for instance, a column ten handbreadths high and four handbreadths wide<span class="x" onmousemove="('comment',' Which has the status of an independent private domain.');">²⁴</span>

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