The philosophy of "as if" : a system of the theoretical, practical and religious fictions of mankind /
Vaihinger, Hans,1852-1933.
Ogden, C. K.(Charles Kay),1889-1957.
London : Routledge,
2000, c1924.
Includes bibliographical references and indexes.

Kant, Immanuel, 1724-1804.
Nietzsche, Friedrich Wilhelm, 1844-1900.
Positivism.
Pragmatism.
Fictions, Theory of.