... <看更多>

De Morgan's Law · If it's a positive number, then yes, (x!=0) <-> (x>0). In programming you will usually handle only positive numbers. So it's ... ... <看更多>

There could be a problem with precedence. For example, assuming ∗ is done before +. Then the correct application of De Morgan's law is ... ... <看更多>

De Morgan's laws are a pair of boolean algebra rules, if written in javascript-style boolean expressions, they look like this:. ... <看更多>