Inequation

In mathematics, an inequation is a statement relating two values, that is either a strict inequality ("greater than", <, or "less than", >) or a relation "not equal to" (≠). It is usually written in the form of a pair of expressions denoting the values in question, with a relational sign between the two sides, indicating the specific inequality relation. Some examples of inequations are:

• ${\displaystyle a<b}$
• ${\displaystyle x+y+z<1}$
• ${\displaystyle n>1}$
• ${\displaystyle x eq 0}$

Sometimes, the term "inequation" is restricted to the relation "not equal to", or is enlarged for including the relations "less than or equal to", ≤, and "greater than or equal to", ≥.