Unlike Munkres (the encyclopedic tome), Mendelson gets to the point. However, his brevity means that might assume you remember a theorem from calculus that you haven't used in two years.
This is precisely why students search for —not to cheat, but to verify their logic when the abstraction becomes dizzying. Introduction To Topology Mendelson Solutions
For example, a typical Mendelson problem asks: "Show that the intersection of an arbitrary collection of topologies on a set X is a topology on X." Unlike Munkres (the encyclopedic tome), Mendelson gets to
Comparing these flowcharts reveals logical gaps without giving away the final answer. This is more valuable than any PDF. Unlike Munkres (the encyclopedic tome)