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Ontology without Axioms.- Le?niewskis Analysis of Russells Paradox.- Logic and Existence.- Le?niewskis Calculus of Names.- On Le?niewskis Ontology.- Ontology: Lesniewskis Logical Language.- On Le?niewskis Elementary Ontology.- Studies in Le?niewskis Mereology.- On the Definition of Mereological Class.- Consistency of Le?niewskis Mereology.- The Dependence of a Mereological Axiom.- Relation of Le?niewskis Mereology to Boolean Algebra.- Index of Names.
![Le[niewskis Systems: Ontology and Mereology [Hardcover]](/itemImage/2/7/9/2/2_1011399.jpg "Le[niewskis Systems: Ontology and Mereology [Hardcover]")