I have a range of 5 cells. These cells can contain a blank, or a number
(the
numbers are 1,2,3,4 and 5). Numbers cannot repeat within the range (i.e.
if
there is a 1 in a cell, the 1 cannot occur in any of the other 4 cells).

With the cursor in the first cell, how can I have Excel determine whether
there is a 1 in any of the other 4 cells; then determine whether there is
a 2
in any of the other 4 cells; then determine whether there is a 3, etc?
There
has to be some way, other than trying to write a super-complex IF
statement.
Do you have any ideas?

If you are simply looking to see if all the cells have been filled in (here,
I am assuming you have procedures in place to make sure they are properly
filled in), SUM the range and see if they total 15.

Rick