MISHNAH. FIFTEEN [CATEGORIES OF] WOMEN EXEMPT THEIR RIVALS AND THE RIVALS OF THEIR RIVALS AND SO ON, AD INFINITUM, FROM THE HALIZAH AND FROM THE LEVIRATE MARRIAGE; AND THESE ARE THEY: HIS DAUGHTER, THE DAUGHTER OF HIS DAUGHTER AND THE DAUGHTER OF HIS SON; THE DAUGHTER OF HIS WIFE, THE DAUGHTER OF HER SON AND THE DAUGHTER OF HER DAUGHTER; HIS MOTHER-IN-LAW, HIS MOTHER-IN-LAW'S MOTHER, AND HIS FATHER-IN-LAW'S MOTHER; HIS MATERNAL SISTER, HIS MOTHER'S SISTER, HIS WIFE'S SISTER AND HIS MATERNAL BROTHER'S WIFE;