After studying a semester of Linear Algebra, you start to get use to proofs. No proposition, Theorem or Corollary comes across without a structured proof. As a matter of fact, a few years… Continuar lendo
Stephen H. Friedberg, Arnold J. Insel, Lawrence E. Spence Linear Algebra 2002 As a student, I had a really hard time finding this textbook. I hope this can help you out.