Abstract
The co-indexing relationship is argued from a syntactic point of view in Chomsky's theory, and many remarkable results are obtained in it. This paper proposes a semantic version of the co-indexing relationship, especially in the framework created by Richard Montague whose procedure is to directly interpret the surface structure.
By considering this relationship from a different point of view from Chomsky's, that is, from a semantic point of view, I have found out that the similarity is obtained between noun phrases without a genitive nominal and infinitive clauses with regard to co-indexing and that the other interesting results are also gotten.
