In set builder notation, “x|x” signifies “x such that x” in mathematics. It is utilised while constructing numerical lists and defining graphing domains.
The phrase “x|x” is enclosed by the beginning and ending curly brackets of a set. The first x represents all possible integers in a set, whereas the second x is followed by a qualifier that limits the set, such as “less than” or “greater than.” For instance, x|x5 represents the set of all x such that x is less than 5. The variable x in “x|x” can be changed with any other letter (x|x, a|a, b|b, and c|c all imply the same thing), and the bar can be replaced with a colon (x:x is equivalent to x|x).