
Since 1973, Galois Theory has been educating undergraduate students on
Galois groups and classical Galois theory. In Galois Theory, Fourth Edition,
mathematician and popular science author Ian Stewart updates this well-
established textbook for today’s algebra students.
New to the Fourth Edition
• The replacement of the topological proof of the fundamental theorem
of algebra with a simple and plausible result from point-set topology
and estimates that will be familiar to anyone who has taken a rst
course in analysis
• Revised chapter on ruler-and-compass constructions that results in a
more elegant theory and simpler proofs
• A section on constructions ...