When it comes to strengthening causal reasoning, I understand that offering other instances where a cause leads to an effect (cause -> effect) will act to strengthen an argument. In addition, I have read that offering instances where there is no cause there is no effect (no cause -> no effect) acts to strengthen arguments as well. One particular question that shows this logic is PT 66 Section 4 Question 12.

Is it true that (no cause -> no effect) acts to strengthen? I've tried to look into this and have come up with various answers.