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Jul 1 '17 at 16:12 comment added schremmer @Christian Because one needs to have a "well-posed problem" I agree with paw88789. And that "this is a difficult issue" is totally besides the point: you have to let your students know, else how are they to understand what you want from them?
Apr 28 '16 at 16:00 comment added Christian @paw88789: I think that this is a difficult issue. Although in my experience mathematicians seem to agree (at least in most cases) on whether a proof is elegant it seems to be hard to come up with (hard) characteristics. Would asking for (references for) such characteristics be on topic on this site?
Apr 19 '16 at 17:53 comment added Michael Joyce It takes a long time to develop elegance and beauty in crafting proofs. I think most students need to focus heavily on understanding how to construct rigorous and logically sound proofs, as well as how to formulate useful proof strategies. I would recommend that you include some remarks on elegance in proof writing in class through some well-motivated examples and address elegance/efficiency when appropriate when giving feedback on assignments. But elegance is not something that one can reasonably demand for students who are not fairly strong grad students (or on their way toward that point).
Apr 19 '16 at 12:38 comment added paw88789 Have you identified the characteristics of an elegant or beautiful proof? That might be a starting point.
Apr 19 '16 at 7:32 history asked Christian CC BY-SA 3.0