\ngeqThe symbol \ngeq is used in mathematics to denote that one quantity is not greater than or equal to another. It is the negation of the \geq (greater than or equal to) relation.
x is not greater than or equal to y
x \ngeq yThe sum of squares of a and b is not greater than or equal to the square of c
a^2 + b^2 \ngeq c^2n is not greater than or equal to 10
n \ngeq 10