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May 28, 2022 at 5:46 history edited Martin Sleziak CC BY-SA 4.0
added 10 characters in body
Sep 29, 2015 at 19:18 review Late answers
Sep 29, 2015 at 19:50
Aug 14, 2010 at 4:44 comment added Victor Protsak There are physical situations where uniqueness of solutions does not hold because of symmetry breaking, for example, the buckling of a beam under the force directed along its axis.
Aug 13, 2010 at 12:23 history answered Francis CC BY-SA 2.5