Compared with mathematical analysis, discrete mathematics is more reasonable. For example, mathematical logic, it will not acquiesce that you know this and that, and will not use things that have not been said before as the premise of reasoning. Every step of reasoning is well-founded. Personally, I think mathematics should be learned in this way, with a system, starting with axioms, then proving theorems, and finally solving problems with theorems. The whole system is derived from several axioms.
brief introduction
Discrete mathematics is a comprehensive subject which integrates traditional logic, set theory (including function), number theory, algorithm design, combinatorial analysis, discrete probability, relation theory, graph theory and tree, abstract algebra (including algebraic system, group, ring, field, etc.). ), Boolean algebra, computational models (languages and automata) and so on. The application of discrete mathematics covers many fields of modern science and technology.