Here are the operators that form infix application tree when called on a symbol or a tree.
lhs OR rhs // ||
lhs AND rhs // &&
lhs INT_| rhs // |
lhs INT_& rhs // &
lhs INT_< rhs // <
lhs INT_> rhs // >
lhs INT_<= rhs // <=
lhs INT_>= rhs // >=
lhs INT_+ rhs // +
lhs INT_- rhs // -
lhs INT_* rhs // *
lhs INT_/ rhs // /
lhs INT_TO rhs // TO