ד ואי מספקא ליה לר"ג תהוי כביאה דלכתחלה ותקני דהא תנן הבעילה בזמן שהיא בתחלה אין אחריה כלום
4 and in a ma'amar after cohabitation and a letter of divorce'.<span class="x" onmousemove="('comment',' Given to one of the widows prior to the cohabitation with the second that preceded the ma'amar addressed to the third. The ma'amar constitutes a kinyan, and the relatives of the third widow are forbidden to the levir, while she herself can be released by a letter of divorce only. ');"><sup>9</sup></span> Now, if R. Gamaliel was in doubt,<span class="x" onmousemove="('comment',' As to the validity of a letter of divorce and a ma'amar given or addressed respectively to a sister-in-law. ');"><sup>10</sup></span> the cohabitation<span class="x" onmousemove="('comment',' Which took place between the other two acts. ');"><sup>11</sup></span> should be regarded as if it had taken place at the beginning,<span class="x" onmousemove="('comment',' And the act that follows it, whether it be the delivery of a letter of divorce or the addressing of a ma'amar, should in any case be invalid: In the case of a ma'amar, cohabitation, and divorce, if the ma'amar with the first was valid and effected kinyan, the cohabitation with the second was obviously invalid and much more so the letter of divorce that was given to the third. If, on the other hand, the ma'amar to the first was invalid, the cohabitation with the second widow that followed was obviously valid and there could consequently be no validity in the letter of divorce that was subsequently given to the third. Similarly in the case of divorce, cohabitation and ma'amar, if the letter of divorce given to the first widow was valid the cohabitation that followed had no validity and much more so the ma'amar that came last. If, on the other hand, the letter of divorce given to the first widow was invalid, the cohabitation with the second widow that followed was obviously valid and consequently there could be no validity in the ma'amar that was subsequently addressed to the third widow. In both cases, then, cohabitation which took place between the other two acts should be as valid as if it had taken place at the beginning. ');"><sup>12</sup></span>