#NE# is not equal to #LT# less than

#GT# is greater than or equal to #LE# is less than or equal to.

@bnd(2, x, 4) means 2.

X # NE # 2 # and # X#NE#4 indicate that x is not equal to 2 and 4.

X#EQ# 10 means that x is equal to 10.

X#GT# 15 means that x is greater than 15.