Postscript on truth conditions and assertability
Now, how a sentence represents things as being is an a posteriori,
contingent matter. Language represents how things are as a result of conventions implicitly entered into for the communication of information, just as Locke said in An Essay Concerning Human Understanding, book III. More particularly, what settles how sentences represent things as being are the beliefs about how things are that the words and sentences, under the contingently adopted conventions of the language, are used to express. 'Roses are red' might have been the sentence to use to convey the information that 'There is a tiger nearby' in fact conveys and, if it had been, it would have been because we had settled on conventions of word and sentence usage that imply that 'Roses are red' is the sentence to use when we wish to communicate our belief that there is a tiger nearby.