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What is the difference between "or" and "and" in senior high school mathematics collection? Also, can these two kinds be represented by two symbols respectively?
Yes, or one of them is enough; Both must be established.

For example, you will understand: take 3 as an example, if we require a number greater than 2 or less than 1, then 3 is consistent, because as long as it is consistent with "greater than 2"; Then if we find a number greater than 2 and less than 1 and satisfy "greater than 2 and less than 1", then 3.

No match, and no natural number match.

The symbol of or is ∨, which means "union", and the symbol is ∨, which means "intersection"