> "I don't think Walmart isn't capable of giving Amazon any hard times" Actually, thinking Walmart is capable does not follow from not thinking they aren't cap

> "I don't think Walmart isn't capable of giving Amazon any hard times" Actually, thinking Walmart is capable does not follow from not thinking they aren't capable. The subject doesn't think they are incapable of giving any hard times. Overall this is perhaps the weakest vote of confidence in Walmart possible, I would read this: "There exists the possibility that Walmart is capable of giving Amazon one or more hard times." That's the best I can do. edit: On reflection the word 'thinking' is crucial, because is suggests a level of uncertainty. Without that uncertainty: !(not walmart is not capable) <-> walmart is capable.