%0 Generic %D 2000 %T Alternative mathematics: the vague way. %A Van Bendegem, Jean Paul %E Krause, Décio %E French, Steven %E Doria, Francisco A. %B Festschrift in honor of Newton C.A. da Costa on the occasion of his seventieth birthday %I Kluwer Academic %V 125 %P 19–31 %@ N/A %G eng