defined by the Bible, is a mamzer. Note, however, that an incestuous relationship between one or two non-Jews cannot produce a mamzer, and if the product of such a union were to convert, he or she would be the equal of any Jew. A child born of a married Jewish woman's adultery is a mamzer. The child of a single woman and a man she could lawfully have married is not a mamzer. It is irrelevant if the man is married or not. If one of the parents is not Jewish, the child is not a mamzer. Any child born to a married woman, even if she is known to have been unfaithful, is presumed to be her husband's, unless she is so promiscuous that such a presumption becomes unsupportable, or if she enters a public relationship with another man. A child born within 12 months of a woman's most recent meeting with her husband is presumed to be legitimate, since Jewish law believes that in rare cases, a pregnancy can last that long. However, if more than 9 months have elapsed, and she is known to have been unfaithful, then the presumption does not apply. Modern assisted reproductive technology has complicated the issue. Rabbi Moshe Feinstein ruled that if a married woman is inseminated by sperm from another man, the child is not a mamzer, since it did not result from an act of adultery; Rabbi Joel Teitelbaum (2005) disagreed, and ruled that, since the child is known to be that of a man other than her husband, it is a mamzer. The status of an abandoned child (Hebrew: asufi) was determined by the state in which it was found. If there were indications that the foundling had been abandoned due to the parents being unable to support it, then, halakhically, the child would not be a mamzer. However, if the unknown parents could have supported the child, it was regarded as potentially being a mamzer. A child whose mother is known, but not the father, was known as "silent one" (Hebrew: shetuki), and fell into the same category as a foundling; this status, however, could be changed if the mother knew and revealed the identity of the father. The mamzer status is hereditary – a child of a mamzer (whether mother or father) is also a mamzer. However, since these rules are regarded as applying only to Jews,