Study Niddah folio 33B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
Or perhaps it is because she was touching the semen, and if so she has not thereby negated her count, just as a zav does not negate his count if he touches semen.
Rava says: Commensurate with the sharpness of Rami bar Ḥama is the extent of his error, as this is not a dilemma at all, since even if one could suggest that a zava who discharges semen has indeed negated her count, one must ask: How much should she negate? If one suggests she should negate all 7
And if one suggests that she should negate one day alone, this too is untenable, as God states: “But if she is purified from her ziva then she shall count to herself 7 days, and after that she shall be pure” (Leviticus 15:28). The word “after” indicates that she shall be pure only after all of them
The Talmud rejects Rava’s response: And according to your reasoning, how does a zav himself negate only one day from his count due to a seminal emission? After all, God states: “And when the zav is purified of his ziva, then he shall count for himself 7 days for his purification, and wash his cloth
Rather, what have you to say? The verse means only that there should not be an impurity of ziva separating between them. Here too, with regard to a zava, the verse means only that there should not be an impurity of ziva separating between them; a discharge of semen is not included in this restric