L. T. F. Gamut is a collective pseudonym for J. F. A. K. van Benthem, professor of mathematical logic; J. A. G. Groenendijk, associate professor of philosophy and computational linguistics; D. H. J. de Jongh, associate professor of mathematics and philosophy; M. J. B. Stokhof, associate professor of philosophy and computational linguistics, all at the University of Amsterdam, and H. J. Verkuyl, professor of linguistics at the University of Utrecht.