Point-free programming style

How do I write the factorial function in point-free?

fact n = foldr1 (*) [1..n]

Which is faster
add1 = 1 +
or
add1 x = 1 + x
???

• The factorial of 0 is 1 (not that it matters)
 • An array is a lookup table. http://en.wikipedia.org/wiki/Lookup_table
 • Here it is about 1% slower with an array, about 5% slower with an associative array. (TraceMonkey here too)