≤ may refer to:
*
Inequality (mathematics)
In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size. The main types of inequality ar ...
, relation between values; ''a'' ≤ ''b'' means "''a'' is less than or equal to ''b''"
*
Subgroup
In group theory, a branch of mathematics, a subset of a group G is a subgroup of G if the members of that subset form a group with respect to the group operation in G.
Formally, given a group (mathematics), group under a binary operation ...
, a subset of a given group in group theory; ''H'' ≤ ''G'' is read as "''H'' is a subgroup of ''G''"
{{disambiguation