One option is =IF(OR(R20=30,R20=20,R20=10),"true","false")
Note that if you want the true and false to be the boolean values, rather
than text, you'll need to leave out the quote marks.
--
David Biddulph

"Fabian" wrote in message
...
i need check two or more "values"getting into the same cell but into the
same
function someting like this example
IF (R20=30 or 20 or 10),"true", "false"