https://www.rasmusen.org/rasmapedia/index.php?action=history&feed=atom&title=Proofs--_Bad_Ones 2026-04-13T18:29:38Z Revision history for this page on the wiki MediaWiki 1.32.0 https://www.rasmusen.org/rasmapedia/index.php?title=Proofs--_Bad_Ones&diff=1542&oldid=prev 2021-03-27T15:18:09Z

<p>Created page with &quot;What bad proofs might go in a course on bad proofs? I&#039;m thinking such a course could be a fun way to teach students, at grad or undergrad level, how to do proofs. It would i...&quot;</p> <p><b>New page</b></p><div>What bad proofs might go in a course on bad proofs? <br /> <br /> I'm thinking such a course could be a fun way to teach students, at grad or undergrad level, how to do proofs. It would include some math classics of the 1=2 and diagonal length of a square equals side length variety with some published economics or math proofs with fatal errors. Answers can be at any level, but the proofs should have one of these features: &lt;br&gt;<br /> (1) Have flaws that are easy to see ex post. &lt;br&gt;<br /> (2) Be short. &lt;br&gt;<br /> (3) Be in a classic paper. &lt;br&gt;<br /> (4) Illustrate a subtle and dangerous flaw. <br /> <br /> That is, no sign errors in the middle of 5 pages of algebra in some East Slovakian working paper. <br /> ----------</div>

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