Book of Abstract Algebra

Excelente libro, tiene una estructura más similar a la de una conversación o una clase, lo que lo hace amigable, pero no se olvida de darnos demostraciones y ejercicios que dejan ver el poder del álgebra abstracta. Pero, para quienes estamos acostumbrados a los libros del tipo teorema - demostracion - ejemplo al principio puede ser extraño seguir la lectura de este libro

Nem muito fácil, nem muito difícil. Cumpre o que promete. Aprendi algumas coisas novas. Dá pra aprender todo conteúdo de 3 cursos de álgebra: Grupos, Anéis e Teoria de Galois.Porém acho que faltou alguns detalhes. Por exemplo, na parte de grupos ele toca apenas brevemente no Teorema de Sylow. E apenas como exercício opcional.

Ottimo libro

Fantastic first book for abstract algebra!

I found this book extremely helpful. The author does not presuppose any previous knowledge and does not over use mathematical notation. Many of the proofs and theorems are simply written out in crystal clear English prose with a few symbols that are defined along the way. He also includes austere but very helpful drawings to illustrate concepts (e.g., functions having the properties of injective, surjective, or bijective is shown with helpful intuitive dot and arrow diagrams).I picked up this book because I developed a fascination with group theory after reading some lay-person books on the subject. I decided it was time to try to learn the real math because I was frustrated by the vagueness of the popular math books. It has been very difficult to find books on topics in pure math that don't presuppose a lot of previous university level math courses. I never took math beyond first year university level linear algebra, although I did study formal logic, and I work as a web developer so I have some facility for abstract reasoning.My focus in reading this book has been to try to understand the ideas, I ignored most of the exercises and applications so I can’t speak to the quality of those. I think this book is excellent for any non-mathematician who wants to learn some more advanced mathematical ideas for the sake of their intrinsic beauty.