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Suppose a ⊆ c, and b and c are disjoint. prove that if x ∈ a then x ∈/ b.
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Suppose a ⊆ c, and b and c are disjoint. prove that if x ∈ a then x ∈/
b.

User PyKing
by
7.6k points

1 Answer

1 vote
If
x\in A, then clearly
x\in C. We're given that
B and
C are disjoint, so no element in
C is also in
B. This means
x\\ot\in B.
User Demobilizer
by
8.5k points
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