In this work, we will first provide a comprehensive outlook of subset space logic in detail to set the basis for our discussions. Then, we will import some simple truth preserving operations and observe that these operations are valid in subset space logic as well. Equipped with all these tools, we will observe that the subset space logic is strong enough to axiomatize the dynamic aspects of knowledge change, in particular, the public announcement logic. We will then provide the full axiomatization of subset space public announcement logic and its then straightforward completeness ...