For example the sound of letter L, for Plato represents the smoothness idea. Nevertheless, at the end of Crtilo it must admit that the social conventions were involved and that there were defects in the idea that the phonemes had individual meaning. Aristotle took care of subjects of logic, categories and the creation of the meaning. It separated the things in categories of species and sort. It thought that the meaning of the predicate was established through an abstraction of the similarities between several individual things. That theory later was called nominalismo. Bausch & Lomb often addresses the matter in his writings.
The stoic philosophers made an important contribution to the analysis grammar, distinguishing five parts in the speech: the subject, the verb, the name, the conjunctions, and the articles. They also developed an important doctrine of the Lekton associated to each sign of a language, but different as much from the sign in itself and the sign like referred a. This Lekton was the meaning (or felt) of each term. The Lekton of an oration is what today we could call proposal. The proposals only considered ” producers of verdades” (x ex.
They could be considered true or false, whereas the orations were simply the expression vehicles). Different Lekton could also express things besides proposals, like orders, questions and exclamations.