The '>' [greater-than] function takes an arbitrary number of numeric arguments. It checks to see if all the numbers are monotonically decreasing. T is returned if the arguments are numerically, monotonically decreasing, NIL is returned otherwise. For two arguments, this has the effect of testing if 'expr1' is greater than 'expr2'.
(> 1 1) ; returns NIL (> 1 2) ; returns NIL (> 2.0 1.99) ; returns T (> 3 2 1) ; returns T (> 3 2 2) ; returns NIL (> "aa" "aa") ; error: bad argument type (setq a 12) (setq b 999.999) ; set up A and B with values (> a b) ; returns NIL (> b a) ; returns T
See the