\nprecThe symbol \nprec is used in mathematical notation to denote that one element does not precede another in a given order. It is the negation of the \prec relation, which indicates that one element precedes another.
Element 'a' does not precede element 'b' in the order.
a \nprec bElement 'x' does not precede 'y', and 'y' does not precede 'z'.
x \nprec y \nprec zA sequence where each element does not precede the next in the order.
p \nprec q \nprec r \nprec s