The following are elements of a mathematical system EXCEPT?*1 pointDefined termsEquationsPostulatesUndefined terms

To address the question regarding elements of a mathematical system, we need to analyze the provided options:

1. Defined terms: These are specific terms that are given precise meanings within a mathematical context. They are essential for constructing mathematical statements.

2. Equations: These are mathematical statements asserting the equality of two expressions. Equations play a crucial role in mathematics, especially in algebra and calculus.

3. Postulates: These are statements assumed to be true without proof, serving as starting points for further reasoning within a mathematical system.

4. Undefined terms: These are concepts that are not formally defined within the context of the system but are understood intuitively (e.g., points, lines, and planes in geometry).

Conclusion

The question asks for elements EXCEPT one that does not belong to the set of elements in a mathematical system. The correct answer would be undefined terms, as they are typically a necessary part of the foundation of mathematical systems but are not explicitly defined within the context of the system itself compared to the other elements.

Thus, the answer is Undefined terms.