A vanity set is a furniture set that includes a make-up table usually with a drawer and a mirror, as well as a matching chair. More popular in the 1960s and 1970s, you can still find them at most larger furniture retailers.
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A set is a collection (or list) of objects called "elements", that are normally of the same type. The objects can be anything, but the set does not contain any duplicate values.Example 1 : The set of integers (whole numbers) = { ... , -2 , -1, 0 , 1, 2, ... }It is usually denoted as Z in "Blackboard Bold" and is an infinite set because it has an infinite amount of elements.Example 2 : The set of primary colours = { Red, Blue, Green}This is a finite set because it only contains 3 elements.A set in algebra is a set...That's the beauty of algebra - it's so general, it's not just about numbers!
An 'Empty Set' or a 'Nul Set'.
Any set that has elements that are not in that set.
The cardinality of a set is the number of elements in the set.