Responsa for Eruvin 46:8
אמר רב ביבי בר אביי כי תנן נמי מתני' [יתר על] פי שנים ברחבה תנן אי הכי היינו ר' יוסי
If so, is not this ruling exactly the same as that of R'Jose?<span class="x" onmousemove="('comment',' Who also ruled: EVEN IF ITS LENGTH IS TWICE ITS BREADTH.');"><sup>13</sup></span> - The difference between them is the squared area which the Rabbis have prescribed.<span class="x" onmousemove="('comment',' Lit., 'made square'. R. Eliezer maintains that the authorized length is twice the breadth and no longer, but a squared area is also permitted; while R. Jose holds that the authorized area is a square although one whose length equals twice its breadth is also permitted. (V. Rashi. Cf., tfht however, R. Han. in Tosaf. s.v. a.l.) .');"><sup>14</sup></span>
Teshuvot Maharam
A. If the major portion of the area of the garden is planted, it is considered a separate enclosure and a person is not permitted to carry objects on the Sabbath from the house to the garden or vice versa. But, if only a small part of the area of the garden is planted, the garden is considered part of the courtyard.
SOURCES: L. 144; cf. Mord. Erub. 485.