יח וכן אמר ר' שמעון בן לקיש אכולהו ורבי יוחנן אמר לא שנו אלא בתולה וזקנה אבל מעוברת ומניקה דיין כל ימי עיבורן דיין כל ימי מניקותן כתנאי מעוברת ומניקה שהיו
18 and this<span class="x" onmousemove="('comment',' Since the same law applies also to one who is pregnant only. ');"><sup>40</sup></span> teaches us incidentally the law that [in respect of an interval of three 'onahs]<span class="x" onmousemove="('comment',' Which exempts a woman from retrospective uncleanness. ');"><sup>41</sup></span> the days of a woman's pregnancy supplement those of her nursing and those of her nursing supplement those of her pregnancy? As it was taught: 'The days of her pregnancy supplement those of her nursing and the days of her nursing supplement those of her pregnancy. In what manner? If there was a break<span class="x" onmousemove="('comment',' In the menses. ');"><sup>42</sup></span> of two 'onahs during her pregnancy and of one during her nursing, or of two during her nursing and one during her pregnancy, or of one and a half during her pregnancy and one and a half during her nursing, they are all combined into a series of three 'onahs'.<span class="x" onmousemove="('comment',' Infra 36a. ');"><sup>43</sup></span> One can well understand the ruling that 'the days of her pregnancy supplement those of her nursing' since this is possible where a woman became pregnant while she was still continuing her nursing. But how is it possible that 'the days of her nursing<span class="x" onmousemove="('comment',' Between which and pregnancy there must be the childbirth and consequent bleeding. ');"><sup>44</sup></span> supplement those of her pregnancy'?<span class="x" onmousemove="('comment',' Would not the bleeding at childbirth interrupt the bloodless interval of the three 'onahs? ');"><sup>45</sup></span> — If you wish I might reply: This is possible in the case of a dry birth.<span class="x" onmousemove="('comment',' So that there is no bleeding (cf. prev. n. but one) to interrupt the three 'onahs. ');"><sup>46</sup></span> And if you prefer I might reply: Menstrual blood is one thing and birth blood is another thing.<span class="x" onmousemove="('comment',' I.e., the latter does not in any way interrupt the interval of the former. ');"><sup>47</sup></span> And if you prefer I might reply: Read the first clause only.<span class="x" onmousemove="('comment',' Lit., 'one', viz., 'the days of her pregnancy supplement those of her nursing', omitting the final clause, 'the days of her nursing … pregnancy'. ');"><sup>48</sup></span> OF WHAT DID THEY SPEAK WHEN THEY LAID DOWN THAT IT SUFFICES [FOR THEM TO RECKON] THEIR [PERIOD OF UNCLEANNESS FROM] THE TIME [OF THEIR DISCOVERY OF THE FLOW]'? etc. Rab stated: This<span class="x" onmousemove="('comment',' The statement just quoted the conclusion of which is that 'AT A SUBSEQUENT OBSERVATION SHE CONVEYS UNCLEANNESS RETROSPECTIVELY FOR A PERIOD OF TWENTY-FOUR HOURS'. ');"><sup>49</sup></span> refers to all of them,<span class="x" onmousemove="('comment',' Sc. the four classes enumerated earlier in our Mishnah. ');"><sup>50</sup></span> and Samuel stated: This<span class="x" onmousemove="('comment',' The statement just quoted the conclusion of which is that 'AT A SUBSEQUENT OBSERVATION SHE CONVEYS UNCLEANNESS RETROSPECTIVELY FOR A PERIOD OF TWENTY-FOUR HOURS'. ');"><sup>49</sup></span> was learnt only in respect of a virgin<span class="x" onmousemove="('comment',' Who, after two observations, may well be deemed to have reached the age of presumptive menstruation. ');"><sup>51</sup></span> and an old woman<span class="x" onmousemove="('comment',' Who also, since after the interruption she had her menses twice, may be assumed to be reverting to her former status of presumptive menstruation while the interruption might be attributed to a mere delay in the appearance of the discharge. ');"><sup>52</sup></span> but for pregnant or nursing women<span class="x" onmousemove="('comment',' Whose menstrual flow must normally cease and any discharge of blood on whose part, however often that may occur (cf. Tosaf.), can only be regarded as an irregular and passing phase. ');"><sup>53</sup></span> it suffices for them, throughout all the days of their pregnancy and throughout all the days of their nursing respectively to reckon their uncleanness from the time of their observing a flow. In the same manner R. Simeon b. Lakish stated: This<span class="x" onmousemove="('comment',' For notes on the statements of R. Simeon b. Lakish and R. Johanan cf. those on the statements of Rab and Samuel supra. ');"><sup>54</sup></span> refers to all of them; while R. Johanan stated: This was learnt only in respect of a virgin and an old woman but for pregnant or nursing women it suffices throughout all the days of their pregnancy and throughout all the days of their nursing respectively to reckon their uncleanness from the time of their observing the flow. This dispute<span class="x" onmousemove="('comment',' Between the Amoras mentioned regarding a pregnant and a nursing woman. ');"><sup>55</sup></span> is analogous to one between Tannas. [For it was taught]: If pregnant or nursing women were