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math notation set theory. The usual mathematical notation for this is. 123 123 is a set and so is heartsuit spadesuit.
Set Theory And Logic Laws Math Jokes Commutative Law Commutative from in.pinterest.com
Denoted by. 5 2 13 5 2 13 union. A B 3791428 AB.
A B denotes A is a subset of B.
A collection of elements. A set where all its elements belong to another set. The number of elements in set A A A. We use the symbol is used to denote membership in a set.
