ulikheten

Ulikheten is a Norwegian noun meaning the quality or state of being unlike, different, or not equal. It is a broad term used to describe differences between objects, quantities, people, or ideas. The word is formed with the prefix u- indicating negation and the root lik, meaning "like" or "similar."

In mathematics and logic, ulikhet denotes inequality between two values or expressions, signified by symbols such as ≠, <, >, ≤, or ≥. It is contrasted with equality (likhet). Discussing ulikheter can involve comparing numbers, sets, or functions, and arises in solving equations, optimization problems, and analyses of size or order.

In social sciences, økonomics, and political science, ulikheter refer to disparities in resources or outcomes across groups or individuals, such as income, wealth, education, or health. Researchers use measures like the Gini coefficient, income shares, or percentile gaps to quantify ulikheter and track changes over time. Policy debates often center on reducing such disparities through taxation, welfare policies, education access, and social programs.

In linguistics and cultural studies, ulikheter describe variation between languages, dialects, or cultural practices. They can reflect historical development, geography, or social stratification and are studied to understand communication, identity, and cultural diversity rather than to assign value.

The term is widely used across disciplines, highlighting a common concern with how things differ and how those differences matter in analysis, policy, and everyday life.