Here's a breakdown:
* Set: A collection of distinct objects.
* Complement: The set of all elements that are not in the original set.
Example:
Let's say you have a set called "A" containing the letters {a, b, c}.
* A' (A with an apostrophe) represents the complement of set A. This would include all letters not in set A, such as {d, e, f, g, ...}
Important Points:
* Universal Set: The complement is defined in relation to a universal set, which contains all possible elements.
* Context: The meaning of the apostrophe depends on the context. It might be used in other ways within set theory.
Let me know if you have any more questions about sets or their complements!