Function Reference Help.

Hello all. Im working on this little reference code snippet,
the code listed below kicks back a “yesha” if a post is in
category 45 OR our town OR delete

<?php
if (in_category( array( 45, 'our-town', 'delete' ) )) {
 echo "yesha";
} else {
	echo "no";
}.....

Im looking for something that does this. >
Echo “yeshsa” if post is in category 45 AND our town AND delete
So it would be conditional if the post is in these multiple categories.

Any help would be appreciated.
J