BananaTrifleViolin, 4 months ago

Actually a good example:

• If you have AIDs (A) then you have HIV (B). True
• You have HIV (B) if, and only if, you have AIDS (A). Not true
• If you don't have HIV (B), then you don't have AIDs (A). True, and the actual inverse of "If A then B"; which is "If not B, then not A"