/= (not equal to)
Operators
<= (less than or equal to)
Returns T if each argument is numerically less than the argument to its right; otherwise nil
(< numstr [numstr] ...)
T, if each argument is numerically less than the argument to its right; otherwise returns nil . If only one argument is supplied, < returns T.
(< 10 20) returns T
(< "b" "c") returns T
(< 357 33.2) returns nil
(< 2 3 88) returns T
(< 2 3 4 4) returns nil