Gavril Ivul (1619–1678), a Jesuit who taught philosophy in the University of Vienna, wrote a logical treatise, Propositiones ex universa logica (1654).
Gavril Ivul (1619–1678), un iezuit care a predat filosofia la Universitatea din Viena, a scris un tratat logic, Propositiones ex universa logica (1654).