יד איבעיא להו פתוח לקרפף מהו א"ר נחמן בר אמי משמיה דאולפנא
14 or is it possible that no difference is to be made between the two cases? ' - 'I maintain', the other replied: 'that renunciation is permitted'.<span class="x" onmousemove="('comment',' Since in this case, unlike the one cited, the residents could have rented the gentile's share before the Sabbath when a valid 'erub could well have been prepared.');"><sup>32</sup></span> Hamnuna, however, ruled: renunciation<span class="x" onmousemove="('comment',' Which is admissible only where an 'erub could have been prepared.');"><sup>33</sup></span> is not permitted.<span class="x" onmousemove="('comment',' Since in this case also no 'erub could have been prepared because the gentile's share in the courtyard had in fact not been rented.');"><sup>34</sup></span> Rab Judah laid down in the name of Samuel: If a gentile has a door of the minimum size of four handbreadths by four that opened<span class="x" onmousemove="('comment',' From his courtyard.');"><sup>35</sup></span> into a valley, even though he leads camels and wagons in and out all day through an alley,<span class="x" onmousemove="('comment',' In which Israelites live and into which his courtyard also has a door.');"><sup>36</sup></span> he does not restrict its use for the residents of that alley. What is the reason? - Tha door which he keeps exclusively for himself is the one he prefers.<span class="x" onmousemove="('comment',' He is consequently presumed to have renounced his right to his share in the alley, and if he does use it he is regarded as a mere passer-by whose passage can in no way affect the rights of the residents (cf. R. Han.) .');"><sup>37</sup></span> The question was asked: What is the ruling where it<span class="x" onmousemove="('comment',' The door of the heathen's courtyard that had also a door opening towards an alley (cf. supra p. 467, n. 16) .');"><sup>38</sup></span> opened into a karpaf?<span class="x" onmousemove="('comment',' Is a karpaf in this respect regarded as a valley?');"><sup>39</sup></span> R'Nahman<span class="x" onmousemove="('comment',' Var. lec., 'Hanan' (Bomb. ed.) .');"><sup>40</sup></span> B'Ammi citing a tradition replied: