Lesniewski's Early Solution to the Liar and T
Abstract of a paper by Arianna Betti.
Lesniewski's System of the Foundations of Mat
Background information on Lesniewski's work.
Mizar: Stanislaw Lesniewski
Biography and a review of his chief achievements in logic.
Polish Analytical Philosophy: Lesniewski
Reconstruction of Lesniewski's argument against universals.