@InProceedings{l06-p105-117, AUTHOR = {Argimiro Arratia and Carlos Ortiz}, TITLE = {Counting Proportions of Sets: Expressive Power with Almost Order}, YEAR = 2006, BOOKTITLE = {Proc.~of the 7th Latin American Symposium on Theoretical Informatics (LATIN'06)}, ADDRESS = {Valdivia, Chile}, PAGES = {105--117}, KEYWORDS = {}}