Reference for Eruvin 167:3

אי הכי אימא סיפא פחות מכאן לחצר אמאי לזה בפתח ולזה בפתח הוא

If so,<span class="x" onmousemove="('comment',' That GALLERY designates the tenants who dwell on it.');">⁷</span> read the final clause: AND ANY LOWER LEVEL BELONGS TO THE COURTYARD; but why,<span class="x" onmousemove="('comment',' Should it be assigned to the courtyard.');">⁸</span> Seeing that it is easily accessible to both?<span class="x" onmousemove="('comment',' To the gallery (which is usually not higher than ten handbreadths) as well as to the courtyard. Since both groups of tenants can have easy access to it restrictions on its use should be mutually imposed.');">⁹</span>

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