Complex sentence: In philosophy of language Salmon defends Millianism, an extreme version of the controversial theory of direct reference according to which the semantic content of a proper name is simply its bearer, so that co-designative names are synonyms and empty names lack semantic content altogether.
Split into simpler sentences: In philosophy of language Salmon defends Millianism, an extreme version of the controversial theory of direct reference. Millianism is the doctrine that the semantic content of a proper name is simply its bearer, so that co-designative names are synonyms and empty names lack semantic content altogether.