טו דיקא נמי דקתני נפל דופנה שמע מינה
15 be? If i be suggested: In agreement with that of R'Eliezer one could object that the latter forbade even the addition to a Structure.<span class="x" onmousemove="('comment',' How then could he permit the addition of the wall?');"><sup>34</sup></span> Consequently it must be in agreement with that of the Rabbis; but could it not be objected: The Rabbis may only have permitted the addition to a structure,<span class="x" onmousemove="('comment',' As is the case with he structure of the window.');"><sup>35</sup></span> did this, however, make it permissible to put up a full wall at the outset? - The fact is that both<span class="x" onmousemove="('comment',' The apparently contradictory Baraithas');"><sup>36</sup></span> are in agreement with the view of the Rabbis; yet there is no contradiction between the rulings regarding vessels,<span class="x" onmousemove="('comment',' In the two cited Baraithas, the second of which does, and the first of which does not permit the putting up of a bed as a wall for a sukkah.');"><sup>37</sup></span> since the former relates to a third wall<span class="x" onmousemove="('comment',' Two walls constitute no hut and the putting up of a third one completes the structure. The Rabbis agree that not even a temporary hut may for the first time be put up on the Sabbath.');"><sup>38</sup></span> and the latter to a fourth one.<span class="x" onmousemove="('comment',' As three walls constitute a hut the putting up of a fourth one is a mere addition to an already existing structure which the Rabbis permit.');"><sup>39</sup></span> The inference from the wording<span class="x" onmousemove="('comment',' Of the first cited Baraitha.');"><sup>40</sup></span> leads to the same conclusion;<span class="x" onmousemove="('comment',' That the prohibition refers to a third wall.');"><sup>41</sup></span> for it was stated: 'If its wall collapsed'.<span class="x" onmousemove="('comment',' Emphasis on 'its wall', sc. the third wall whereby the sukkah becomes valid. A fourth one does not in any way affect the sukkah's validity');"><sup>42</sup></span> This is conclusive.