What is the purpose of the small and large ditches mentioned in the mishna? The new chapter deals with inheritance laws and the mishna discusses who can inherit from another and what is the order. The Torah delineates the order but leaves out a father inheriting from his son. Two different braitot are brought that each establish (using derivations from different verses) that the father comes after the son and daughter of the deceased and before the brothers and paternal uncle. The gemara questions why the father is there and not either before the daughter or after the brother. The gemara also questions what the author of each braita would learn out from the other verse (the one he didn’t learn out this halacha from).