Universal Algebra

2. Basic Concepts
George Grätzer

3. Subalgebras and Homomorphisms
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4. Partial Algebras
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5. Constructions of Algebras
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6. Free Algebras
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7. Independence
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8. Elements of Model Theory
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9. Elementary Properties of Algebraic Constructions
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10. Free Structures
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11. Appendix 1. General Survey
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12. Appendix 2. The Problems
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13. Appendix 3. Congruence Varieties
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14. Appendix 4. Equational Logic by Walter Taylor
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15. Appendix 5. Primality the influence of Boolean Algebras in Universal Algebra
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16. Appendix 6 Equational Compactness
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17. Appendix 7 The Independence Proof
George Grätzer

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