Automated reasoning in artificial intelligence involves the use of algorithms and formal logic to derive conclusions from a set of premises or facts. This technology enables machines to simulate human reasoning, allowing them to solve problems, make decisions, and prove theorems autonomously. Applications of automated reasoning include natural language processing, robotics, and formal verification of software. By leveraging techniques such as model checking and theorem proving, automated reasoning enhances AI's ability to understand complex information, improving its accuracy and reliability in various domains.