Typical: A Theory of Typicality and Typicality Explanation

Typicality is routinely invoked in everyday contexts: bobcats are typically short-tailed; people less than seven feet tall. scientific contexts as well: typical gases expand; quantum systems exhibit probabilistic behaviour. And typicality facts like these support many explanations, both quotidian and scientific. But what it for something to be typical? how do explain? In this paper, I propose a general theory of typicality. analyse the notion property. provide formalism give an account why explanations explanatory. Along way, show explain variety phenomena, from phenomena statistical mechanical behaviour gases. Finally, argue that not same thing probability.