The advantages in definiteness, in accuracy, in verifiability were all on the side of the new knowledge.
For accuracy and correctness would both be functions of verifiability.
Many difficult problems arise as regards the verifiability of beliefs.
(a) We have been considering, in the above account, the question of the verifiability of physics.
Now verifiability is by no means the same thing as truth; it is, in fact, something far more subjective and psychological.
That such series exist is an empirical fact, which constitutes the verifiability of physics.