Good day,
I have an engineering background and I recently took an interest in topology. I found this book Topology (2015) by Marco Manetti (ISBN 978-3-319-16958-3) and starting going through it.
Unfortunately I am experiencing a lot of difficulties with his definitions in the introductory chapter, which correspondingly means I can't quite do the exercises contained therein. Although I do understand the set-theoretic notation he uses, I find it difficult to understand the significance of these definitions and to develop a kind of intuition for them. Hence the question: is this book suitable for a beginner in this subject?
Best wishes