continuous version where it just replaced out some sign with a little squiggly thing and then you put a D something is over the variable instead of putting it under so essentially just always a place sum over the variable with this thing here and then a dy and then you got the same thing just for continuous space Bayes rule the terms we didn't name them but essentially often the X the P of X is called the prior because we have it ahead of time Y given X is the likelihood of a measurement Y given this state is x is often what it