Consistency criterion

The consistency criterion is a way of making sure that things make sense when you compare them to each other. Imagine you have a bunch of different toys that you want to put in order from smallest to biggest. If you use the consistency criterion, you have to make sure that each toy is bigger than the one before it, and smaller than the one after it. This way, everything stays in a logical order and there are no surprises. It's like building a tower with blocks – each block has to fit properly on top of the one below it, or the tower will fall down. The consistency criterion helps us keep things organized and make sense of the world around us.