This is just the inverse operation of the previous one. It has two parts; firstly:
And secondly, for the case you wanted :
So, you can separate in several lines the conjunctands of a conjunction (yes, I think it's used that strange word). That's why this rule is called conjunction elimination, because from one line which has conjunction symbols () you can extract several which don't have it, supposedly trying to approach to the formula which we want proved.