R. Akiva says: (He may divorce her) even if he finds another more beautiful than she, it being written "if she does not find favor in his eyes."
"then he shall write to her": in her name — whence they ruled. Any get not written in the name of that woman is invalid. How so? If one passed by in the marketplace and heard a scribe saying "This man divorces this woman from this place," and he said "That's my name and that's the name of my wife," it is invalid as a get. More so — If he wrote (a get) to divorce his wife, and he changed his mind, and a man of his city found it and said "That's my name and that's the name of my wife," it is invalid as a get. More so, if he had two wives with the same name, if he wrote it to divorce the tall one, he may not use it to divorce the short one. More so, if he told the scribe to write it, thinking "I will use it to divorce whichever I wish," it is invalid as a get.