It's said that a predicate is a procedure that returns #t or #f. Perhaps it would be better as "an effect-free procedure that returns #t or #f". The report does not contain any effectful predicates, but it does set up a vocabulary for schemers to use, and predicates should not have visible effects. As you like, though.
Andy -- http://wingolog.org/ _______________________________________________ Scheme-reports mailing list [email protected] http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
