For example, let say there is a NC16-rated movie and you can watch it only if you are at least 16 years old. So H := “watch NC16” and C := “16 years old and above”. The conditional statement means “If you want to watch the movie, then you must be 16 years old and above”. The contrapositive is “If you below 16 years old, then you cannot watch the movie”. The contrapositive always has exactly the same meaning as the original conditional statement. If one is true, so is the other. If one is false, so is the other. The contrapositive is merely phrased in a different way.
* Primary School Olympiad
* syllabuses that involve logic and epistemology