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Empirical Logic [and] Symbolic Logic Author: Venn, John Place: London Publisher: Macmillan Date: 1889; 1894 Description: Includes: Empirical Logic. xx, 594 + [2] ad pp. Red cloth lettered in gilt on spine. First Edition. Symbolic Logic. Second edition revised and rewritten. John Venn (1834–1923) was an English mathematician, logician and philosopher noted for introducing the Venn diagrams, which are used in logic, set theory, probability, statistics, and computer science. Lot Amendments Condition: Empirical Logic with tear to cloth at heel and rubbing with fraying at both spine ends, some sunning to cloth particularly at spine; front hinge repaired with binder's tape; about very good. Symbolic Logic with light rubbing at ends of slightly sunned spine; rear hinge repaired with binder's tape; about very good. Lots sold without reserve are sold “as Is” and are not returnable under any circumstances. The minimum shipping and handling per invoice is $20 for shipments to the US and $30 for shipments outside the US please consider this when determining your bid amount Item number: 338174a