אליהו מזרחי

Elijah Mizrachi was a Talmudist and posek, an authority on Halakha, and a mathematician. He is best known for his Sefer ha-Mizrachi, a supercommentary on Rashi's commentary on the Torah. He is also known as Re'em, the Hebrew acronym for "Rabbi Elijah Mizrachi", coinciding with the Biblical name of an animal, the re'em.