Sets are depicted as objects inside curly braces and are denoted by capital letters. What is included. Lets say that our universe contains the numbers 1 2 3 and 4 so U 1 2 3 4Let A be the set containing the numbers 1 and 2.
We can use SET BUILDER notation to describe a set in terms of its properties.
C D 3 4 A B. Subset strict subset and superset. It says the set of all xs such that x is greater than 0. In set theory and its applications to logic mathematics and computer science set-builder notation is a mathematical notation for describing a set by enumerating its elements or stating the properties that its members must satisfy.