# Metric space

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#1
Can someone help me with the correct answer to this question?
explanation/resources will be highly appreciated.
If A and B are two subsets of X, A is set to meet B if ----------------
i. A∩B≤ϕ
ii. A∩B=ϕ
iii A∪B≤ϕ
iv. A∪B=ϕ
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2 years ago
#2
(Original post by ayetolu_samuel)
Can someone help me with the correct answer to this question?
explanation/resources will be highly appreciated.
If A and B are two subsets of X, A is set to meet B if ----------------
i. A∩B≤ϕ
ii. A∩B=ϕ
iii A∪B≤ϕ
iv. A∪B=ϕ
I'm struggling to understand this question. The idea of a "meet" comes from lattice theory, and this appears to be about sets; and I don't know what A∩B≤ϕ means. Could you post the original question - possibly using a scan or a photo?
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