Explore advanced concepts in theoretical physics with this lecture from the Prospects in Theoretical Physics 2024 series on Ultra-Quantum Matter. Delve into the third part of Xie Chen's presentation on duality within the Symmetry Topological Field Theory framework. Over the course of 1 hour and 22 minutes, gain insights into cutting-edge research and theories presented at the Institute for Advanced Study. Expand your understanding of complex quantum systems and their symmetries as Chen builds upon previous discussions to further elucidate this intricate topic.