Here is a premise:
You could just ask him what he makes of, say, van Pelt's assertion that the answer to the riddle of the gas chambers was all over the archives, or what he thought of the chemist's declaration that the test performed for cyanide was the wrong test.

Here is a hypothesis:
Van Pelt says gas chambers could be explained in the archives of the capital.

Is it possible to conclude that if the premise is true, then so is the hypothesis?
it is not possible to tell