It may be argued that the deflationary nominalist needs to introduce the distinction between ontologically serious (or ontologically committing) uses of the quantifiers and ontologically innocent (or ontologically non-committing) uses. If so, this would presumably require a different semantics for these quantifiers. In response, the deflationary nominalist will deny the need for such distinction. In order to mark ontological commitment, an existence predicate, which expresses ontological independence, is used. Those things that are ontologically independent of us (that is, of our linguistic practices and psychological processes) are those to which we are ontologically committed. The mark of ontological commitment is not made at the level of the quantifiers, but via the existence predicate.