6.
Principles of Truth : [conference Truth, Necessity and Provability , Which Was Held in Leuve...
by Halbach, Volker, Horsten, Leon
ISBN: 9783110332483
7.
Principles of Truth : [conference Truth, Necessity and Provability , Which Was Held in Leuve...
by Halbach, Volker, Horsten, Leon
ISBN: 9783110332674