What does the symbol mean between A and B?

➷ It means 'AND.' If this is in references to a list or a Venn diagram, it would be the values in both A and B.
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Answer:
see explanation
Step-by-step explanation:
A ∩ B denotes the intersection of the 2 sets A and B and is the set of elements which are members of A and also members of B.
This new set is written A ∩ B ( A intersection B ), for example
If A = { p, q, r, s } and B = { r, s, t }, then
A ∩ B = { r, s }