It depends how much persuading he needed :-)
--
John Briggs
Exactly. I'd reluctantly accept "I convinced him to give himself up to
the police", but would prefer "I convinced him that he should give
himself up". Going to the cinema may indeed require _hard_ persuasion,
but I still feel "convince" would be wrong in this kind of "argument".
IMHO, you convince people _that_ a situation is as you say it is, or a
course of action is the right one but you don't (well, didn't!) follow
it with an infinitive. Otoh, you do follow "persuade" with an
infinitive - not invariably, but most of the time.
BS