 (The possibility of finding a conditional probability satisfying this integral formula is known as ‘disintegrability’, and it is equivalent to a principle known as “conglomerability”. For philosophical arguments in favor of this, see Easwaran (2013b, 2019), Rescorla (2018).) For more on determining when conditional probabilities that satisfy this rule exist, see Hoffmann-Jørgensen (1971), and for more on how to use probability densities to calculate these conditional probabilities, see Chang and Pollard (1997).