Reference for Eruvin 50:5

דאמר רב חסדא קרפף שנפרץ במלואו לחצר חצר מותרת וקרפף אסור

Apparently in accordance with that of R'Simeon;<span class="x" onmousemove="('comment',' Supra 23b (v. prev. note) where R. Simeon has laid down that it is permitted to move objects from a courtyard into a karpaf.');">¹⁰</span> but according to R'Simeon also there is in fact the space of the position of the walls.<span class="x" onmousemove="('comment',' By which the area of the karpaf that was exactly two beth se'ah is increased to more than the permitted size.');">¹¹</span> For R'Hisda ruled: If a gap across the full width of a karpaf was opened towards a courtyard [movement of objects] is permitted in the latter and forbidden in the former.

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