>>239
つづき

Those proofs, by the way, are completely
sound, very little seems to happen in those
two papers (to me).
Since then, I have kept asking other experts
about this step, and so far did not get any
helpful explanation. In fact, over the years
more people came to the same conclusion;
from everybody outside the immediate vicinity
of Mochizuki, I heard that they did not
understand that step either.
The ones who do claim to understand
the proof are unwilling to acknowledge that
more must be said there;
in particular, no more details are given
in any survey, including Yamashita’s,
or any lectures given on the subject
(as far as they are publicly documented).