Reference for Eruvin 174:1
הכא רשויות דרבנן
while here we are dealing with Rabbinical domains.<span class="x" onmousemove="('comment',' Sc. the movement of objects between a karmelith and a private domain is only Rabbinically forbidden. As Pentateuchally it is permitted to transfer directly from the one into the other the Rabbis have relaxed their ruling where the transfer is effected by way of a free domain. (As to the discrepancy between R. Dimi's minimum of four handbreadths and that of three handbreadths in the Baraitha cf. Rashi a.l.)');"><sup>1</sup></span> But did not R'Johanan maintain his view<span class="x" onmousemove="('comment',' That no transfer from one domain into another is permitted even by way of a free domain.');"><sup>2</sup></span> even in the case of Rabbinical domains?