\succnapprox
The symbol \succnapprox is used in mathematical notation to denote that one element is neither succeeding nor approximately equal to another element. It is a negated relation that combines the concepts of 'succeeds' (\succ) and 'approximately equal to' (\approx), indicating that the first element does not succeed and is not approximately equal to the second element.
Element 'a' is neither succeeding nor approximately equal to element 'b'.
a \succnapprox b
The square of 'x' is neither succeeding nor approximately equal to the square of 'y'.
x^2 \succnapprox y^2
The function 'f(x)' is neither succeeding nor approximately equal to the function 'g(x)'.
f(x) \succnapprox g(x)