However, a common refrain among its readers is: "The theory is clear, but the exercises are a jump." This is where the demand for reliable solutions enters.
: In topology, if you can’t start a proof, it’s usually because you haven't written down the formal definition of the terms in the question (e.g., "What does it mean for a set to be T2cap T sub 2 or Hausdorff?"). Introduction To Topology Mendelson Solutions