How to check the following sets partition another set?

39 Views Asked by At

Suppose I have a sample space $S$.

I would like to check that the events $A^{c} \cap B \cap C$ and $(A^{c} \cap B \cap C)^{c}$ partition $S$, i.e. that:

1.$(A^{c} \cap B \cap C) \cap (A^{c} \cap B \cap C)^{c} = \emptyset$,

  1. $(A^{c} \cap B \cap C) \cup (A^{c} \cap B \cap C)^{c} = S$

I have no idea how to do this , what laws of sets would be useful here - please help.