Mathematics, 21.07.2019 18:30 jstephanie644
Suppose a ⊆ c, and b and c are disjoint. prove that if x ∈ a then x ∈/ b.
Answers: 1
, then clearly 
. We're given that 
and 
are disjoint, so no element in 
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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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