L. T. F. Gamut

L. T. F. Gamut was a collective pseudonym for the Dutch logicians Johan van Benthem, Jeroen Groenendijk, Dick de Jongh, Martin Stokhof and Henk Verkuyl.

Gamut stands for the Dutch universities of Groningen (G), Amsterdam (am), and Utrecht (ut), then the affiliations of the authors. The initials L. T. F. stand for the discussed topics, respectively, Logic (Dutch: ''Logica''), Language (Dutch: ''Taal'') and Philosophy (Dutch: ''Filosofie''). Provided by Wikipedia