He maintained, for example, at one time that all existential propositions are meaningless.
2.
Lower Manhattan is now an existential proposition.
3.
Another difficulty for the claim that every truthbearer has a truthmaker is with negations of existential propositions ( or, equivalently, universal propositions ).
4.
:The categorical proposition " Some man is not learned " has the same meaning as the existential proposition " A non-learned man exists " or " there is a non-learned man ".
5.
:The categorical proposition " No stone is living " has the same meaning as the existential proposition " A living stone does not exist " or " there is no living stone ".
6.
:The categorical proposition " All men are mortal " has the same meaning as the existential proposition " An immortal man does not exist " or " there is no immortal man ".