The Psychology of Reasoning

If p then q will be the kind of positions where you can substitute anything in there. And indeed there's a famous example where if you substitute in something from everyday life like drinking and driving the rule becomes a lot easier to do the task. I think it also shows that where this is a kind of a logic rule so you can do it with vowels, consonants of numbers and even numbers, but the general form is always if something bends something else rather than if something, then not something else.