Returns T if each argument is numerically less than or equal to the argument to its right; otherwise returns nil
(<= numstr [numstr] ...)
Arguments
A number or a string.
Return Values
T, if each argument is numerically less than or equal to the argument to its right; otherwise returns nil. If only one argument is supplied, <= returns T.
Examples
(<= 10 20) returns T
(<= "b" "b") returns T
(<= 357 33.2) returns nil
(<= 2 9 9) returns T
(<= 2 9 4 5) returns nil
