من متوجه این قسمت نمیشم. مگه قبل از این ثابت نکردین هر عدد اول تو این دنباله میاد دیگه این قسمت برای چیه ؟
"let
be the answer of this congruency then
all
the other answers of this congruency are
now u can easily prove that there exists at least one
such that
.so we r done.
how can we prove this equality?
just see that if we assume that
isn't in the first
-th terms then we must have
(because we know that
) for
all
and since this inequality can't hold forever (since the number of
primes
lesser than
is finite) so there must exists an integer like
such that
.which means that
and so one of the
primes
must be
,if not then
and so
.
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