Product Rule

Indent

𝐏(𝐴𝐡) = 𝐏(𝐴|𝐡)𝐏(𝐡)

Chain Rule

chain rule is an extension of the product rule above

Indent

𝐏(𝑋1, …, 𝑋𝑛) = 𝛱1≀𝑖≀𝑛𝐏(𝑋𝑖|𝑋𝑖+1, …, 𝑋𝑛)