- #1
rubenhero
- 42
- 2
Homework Statement
Prove the second absorption law from Table 1 by showing
that if A and B are sets, then A ∩ (A ∪ B) = A.
Homework Equations
Absorption laws
A ∪ (A ∩ B) = A
A ∩ (A ∪ B) = A
The Attempt at a Solution
i will show A ∩ (A ∪ B) is a subset of A
x is any element in A ∩ (A ∪ B)
x is not an element in (A ∩ (A ∪ B))'
NOT ( x is an element in(A ∩ (A ∪ B))')
NOT (x is not an element in A ∩ (A ∪ B))
NOT (NOT (x is not an element in A ∩ (A ∪ B)))
x is a element in A