English of Core Text: And even a daughter of Noach who commits adultery is put to death; even though it is written “therefore a man shall leave” — a man and not a woman, afterward it is written “and they shall become one flesh” — the verse then joins them together.
On the daf / in context: The feminine liability is restored by the plural “they shall become one flesh,” which re-includes the woman.
Type of Learning: Custom (female Noachide liability for adultery)What Is Learned: A Noachide woman is also liable for adultery; the plural “they shall become one flesh” brings her back into the prohibition.