Isaiah ben Elijah di Trani (the Younger) (Hebrew: ישעיה בן אליהו דטראני) was an Italian Talmudist and commentator who lived in the 13th century.
Extracts from it are printed in Joshua Boas's Shilṭe ha-Gibborim, Sabbionetta, 1554, and in the editions of Isaac Alfasi's Halakhot.
He is independent in his criticisms of older authorities, his grandfather not excepted, whom he often quotes (with the abbreviation מז"ה = "Mori Zeḳeni ha-Rav").
As a sort of preliminary work to the Halakhot he wrote a book, Kontres ha-Re'ayot, which contained and discussed the proofs for his halakic decisions.
[13] Unlike his grandfather, Isaiah was an opponent of Aristotle and of the rest of the Greek philosophers who "denied the Torah."
He endeavored to shield the grotesque midrashim[clarification needed] from derision on the part of Christian theologians and baptized Jews by interpreting them as symbolic or hyperbolic.