193d

[Constantinus Philo]

καί μου τότε οὐκ ἐμάνθανες.
why G? this verb takes Acc and there is no noun on which G may depend.

[jeidsath]

My read: You weren't learning [it] off me. [from me]

The actual object of the verb is what's being learned, but the genitive shows the origin. It works like ἀκούω. At least that's how it strikes me.

[Constantinus Philo]

yes, this is ablatival G I have found in Sm an example with manthano