Does the feat Disciple of the Sword qualify the character for the Mythic Weapon Specialization feat?
If not directly, does a character that later gets Greater Weapon Specialization qualify for the regular Mythic WS feat?
Seems like it should, but with RAW neither case is apparent.
Hair-splittingly technically, no. It's really, really close, but it specifies the degree to which is substitutes for Weapon Specialization--namely, to qualify for Greater Weapon Specialization.