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• n  refutation by example

• A year later, he has his counterexample: in 2006, France pushed past Ireland to become the most fecund nation in the European Union, with an average of two babies per woman.
• But then there is Fischer, the fearsome counterexample, now pathetically sheltered in Iceland, the only place that appreciates his genius enough to take pity on his madness.
• The American Revolution does not provide a counterexample.

News & Articles

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• Compression Used to Reduce Material's Density
  If you look hard enough, it is quite possible you will find a counterexample to any rule. One such rule is that as you apply pressure to something, it will become denser, but it turns out this is not always the case. Researchers at Argonne National Laboratory first discovered such a material years ago and since then have been testing it to convince them of what it was doing. The material in ...
  June 19, 2013 - Overclockers Club

Quotes

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• Mark Gerstein in ScienceBlogs (blog)
  The way biology works is different from mathematics,said Mark Gerstein, a bioinformatician at Yale. "If you find one counterexample in mathematics, you go back and rethink the definitions. Biology is not like that. One or two...