# Question: exercise 2 the principle of inclusionexclusion show that pab ...

###### Question details

Exercise 2. The Principle of Inclusion-Exclusion Show that P(A∪B) = P(A) + P(B)−P(A∩B) (1.4) By writing A∪B∪C as (A∪B)∪C, extend the result to three sets: P(A∪B∪C) = P(A)+P(B)+P(C)−P(A∩B)−P(A∩C)−P(B∩C)+P(A∩B∩C)