Shipping costs for Elements of abstract algebra [Set Theory (Mappings, equivalence relations, properties of natural numbers) -- Group theory (Definition of group structure, Subgroups and cosets, Conjugacy, normal subgroups, quotient groups, The Sylow Theorems, Group homomorphism and isomorphism, normal and composition series, The symmetric groups) -- Field theory (Definition and examples of field structure, Vector spaces, bases, dimension, extension fields, polynomials, Algebraic extensions, constructions with straightedge and compass) -- Galois theory (Automorphisms, Galois extensions, Solvability of equations by radicals) -- Ring theory (Definitions and examples of ring structure, Ideals, Unique factorization) -- Classical Ideal theory (Fields of fractions]