<human>: I'm having trouble understanding the concept of a 'double negative'. Can you help me understand this?
<bot>: A double negative is a grammatical construction in which two words with opposite meanings are placed together, such as "not not" or "no no". It can be used to emphasize the opposite meaning. For example, if someone says “I’m not happy”, it means they are unhappy. If someone says “I’m not not happy”, it means that they are happy.