Premise:
"If Posner tells Microsoft that, on this occasion, the government has a point, Microsoft will be hard put to disagree."
Hypothesis: It will be easy for Microsoft to disagree.

no

Premise:
"So I don't think it's intellectually dishonest to say that this information must have come from Starr's office."
Hypothesis: I don't think that saying the information must have come from Starr's office is inctellettualy dishonest, but you will never listen to me.

it is not possible to tell

Premise:
"It is the main venue for the International Istanbul Festival ."
Hypothesis: The Istanbul festival is an international affair.
it is not possible to tell