ABSTRACT
This chapter discusses whether the existence is a predicate. Mr. Kneale says that the word 'predicate' has two different senses, a logical sense and a grammatical sense. If so, it would follow that the words 'Existence is not a predicate' may have different meanings. He implies that 'Existence is a predicate', with this use of 'predicate', is equivalent to the proposition that the word 'exists', and other finite parts of the verb, often do stand for a predicate in the logical sense. Existence is essentially a property of a propositional function and it is of propositional functions that one can assert or deny existence and that it is a fallacy to transfer 'to the individual that satisfies a propositional function a predicate which only applies to a propositional function'; so that, according to him, existence is, after all, in this usage, a 'property' or 'predicate', though not a property of individuals, but only of propositional functions.
