Could you please show how could I get from the left parts to the right parts for the following two relations? Thank you.
1) P(A|B)*P(B|C) = P(A,B|C)
2) P(A|B)*P(B,C|D) = P(A,B,C|D)
I would like to mention also the source where I found it: https://youtu.be/lzN18y_z6HQ?t=253