Reference for Eruvin 185:3

א"ל רבה בר רב חנן לאביי ולא מצינו מחיצה לאיסור והתניא בית שחציו מקורה וחציו אינו מקורה גפנים כאן מותר לזרוע כאן

is still valid, while according to your view it is a case of the removal of' partitions'.<span class="x" onmousemove="('comment',' Cf. supra n. 5 mut. mut.');">¹⁰</span> Said Rabbah B'R'Hanan<span class="x" onmousemove="('comment',' MS. M., Raba b. R. Hanin.');">¹¹</span> to Abaye: Do we not find elsewhere that a partition may be the cause of a prohibition? Was it not in fact taught: If a house was half covered with a roof while its other half was uncovered, it is permissible to sow<span class="x" onmousemove="('comment',' Immediately outside the covered section.');">¹²</span>

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