intersection to get the law \bigcup_{i\in I} \bigg(\bigcap_{j\in J} A_{i,j}\bigg) \subseteq \bigcap_{j\in J} \bigg(\bigcup_{i\in I} A_{i,j}\bigg). Linear inequality In mathematics a linear inequality is an inequality which involves a linear function . Linear inequalities in real numbers Definitions When two expressions are connected by 'greater than' or 'less than' sign,we get