degree; likewise, with a full brother and a paternal half-sister, the full brother does not make her a residuary heir, because they differ in category.

“One-sixth goes to one or more son’s daughters alongside a daughter, and to one or more paternal half-sisters alongside a full sister, provided that neither group has a male relative who makes them residuary heirs, ……”

His statement, “One-sixth goes to one or more son’s daughters alongside a daughter, and to one or more paternal half-sisters alongside a full sister,” means that one-sixth goes to a son’s daughter along with a daughter: whenever the daughter inherits one-half, the son’s daughter receives one-sixth. Similarly, a paternal half-sister receives one-sixth alongside a full sister: whenever the full sister inherits one-half, the paternal half-sister receives one-sixth.

Thus, if a deceased person leaves behind only one daughter and one son’s daughter, the daughter receives one-half and the son’s daughter receives one-sixth.

If a deceased person leaves behind a full sister and a paternal half-sister, with no inheriting descendant and no inheriting male ascendant, the full sister receives one-half and the paternal half-sister receives one-sixth.

Here, son’s daughters receive no more than one-sixth, whether there is one of them or more. Thus, if a deceased person leaves behind one daughter and ten son’s daughters, the daughter receives one-half, and the ten son’s daughters receive one-sixth. Their prescribed share does not increase with their number.

If a deceased person leaves behind a full sister and a paternal half-sister, the paternal half-sister receives one-sixth; even if they are ten, they receive one-sixth. Their prescribed share does not increase with their number. Add these two categories to the two previous categories whose prescribed share does not increase with their number, and they altogether make four. Hence it is said: There are four whose prescribed share does not increase with their number: wives, grandmothers, son’s daughters alongside a daughter, and paternal half-sisters alongside a full sister.