When this is, that is.
From the arising of this comes the arising of that.

When this isn’t, that isn’t
From the stopping of this comes the stopping of that.  

AN 10.92

The law of conditionality—from the Anguttara Nikaya of the Pali Canon—states the relationship between a thing or event and its causes and conditions. Without causes and conditions, nothing can exist. To change an outcome, change the conditions that precede it.