[bboy_]

im(halfpot) € im(fullpot)

but

im(fullpot) ! € im(halfpot)

the "images" of hands that each foldout are not even close. however, you do have the right idea that if a player folds to a halfpot they will also fold to a fullpot, thus risking us more money when we bet fullpot. we can't know when they will fold though, so i suggest looking at the other factors.