Final answer:
a ∈ {a} and {3,5} = {5,3} are true statements, indicating that an element belongs to a set that contains it and that the order of elements in a set does not matter. The statement ∅ ∈ ∅ is false because the empty set does not contain any elements.
Step-by-step explanation:
Evaluating Statements for Truth or Falsehood
To determine the truth or falsehood of the given mathematical statements, let us consider each one individually: