👉 A coherent definition is that a system is defined as being logically and semantically consistent, meaning it has no contradictions or inconsistencies. In other words, it's self-consistent in all its elements. For example, consider two statements: "All birds can fly" and "All mammals are able to walk." If you were to add the second statement (which is not directly related to the first) into the first, then the logical consistency would be lost. This means that these two statements cannot be
