Sets and Possible WorldsNOLT, J. E.Philosophical Studies. An International Journal for Philosophy in the Analytic Tradition Tucson, Ariz. 1983, Vol 44, Num 1, pp 21-35Article

Mathematical IntuitionNOLT, J. E.Philosophy and Phenomenological Research Buffalo, N.Y. 1983, Vol 44, Num 2, pp 189-211Article

Abstraction and ModalityNOLT, J. E.Philosophical Studies. An International Journal for Philosophy in the Analytic Tradition Tucson, Ariz. 1980, Vol 38, Num 2, pp 111-127Article