18-97-14-84.crawl.commoncrawl.org | ToothyWiki | RecentChanges | Login | Advent calendar | Webcomic The CampaignAgainstMultipleWorldSentences believes that no sentence should be uttered in more than one world simultaneously. We will campaign for the full force of the law to be brought down on anyone attempting to utter a sentence in more than one world simultaneously.
What about possible rather than certain simultaneous uttering? (Of course, if anyone wishes to discuss this in modal logics other than S5, feel free to specify one).