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If A ⊆ B, then A ∪ C ⊆ B ∪ C
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If A ⊆ B, then A ∪ C ⊆ B ∪ C

User Skybobbi
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4 votes

Answer:

True

Explanation:

if B has a part of A so B+C can have A+C

User Wesley Burr
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