👉 Under mathematics refers to the foundational principles, concepts, and methods that serve as the bedrock for more advanced mathematical theories and applications. It encompasses everything from basic arithmetic operations to complex theories like calculus, number theory, and topology. Concepts such as sets, functions, limits, and proofs are fundamental, providing the tools necessary to build and understand more sophisticated mathematical ideas. Without a solid grasp of under mathematics, one cannot effectively engage with or contribute to advanced mathematical research and applications.