[*] 1. Syntax treats of the formation and combination of sentences. A sentence is the expression of thought in words. It is a “λόγος”. The necessary parts of the sentence are the subject and the predicate. The predicate is that which is said of the subject. The subject is that of which the predicate is said. “ἄνθρωπος μανθάνει,” PLATO, Soph. 262C ; Man learns. “ἄνθρωπος” is the subject; “μανθάνει” is the predicate. See also 2, 27, and 68-82. Sentences are divided into simple and compound. A simple sentence is one in which the necessary parts of the sentence occur but once, as above, “ἄνθρωπος μανθάνει”. For the compound sentence, see Index.