triviality in analysis

From: Saem T. (saemtuarg_at_yahoo.it)
Date: 02/13/05


Date: 13 Feb 2005 03:26:10 -0800

What's the reason why

(

|| x-y || > ||y|| - ||x||

et

|| x-y || > ||x|| - ||y||

)

implies

|| x-y || > | ||x|| - ||y|| |

?

Note: x,y belongs to the normed space
      (V,|| ||), || denotes the absolute
      value in R.



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