| 
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Let 
 be some attribute (e.g., possible, present, perfect, etc.).  If all is 
, then the non-
 must also be 
.
For example, ``All is possible, the impossible too,'' and ``Nothing is perfect, not even the perfect.''
References
Le, C. T.  ``The Smarandache Class of Paradoxes.''  Bull. Transylvania Univ. Brasov 36, 7-8, 1994.
 
Le, C. T.  ``The Smarandache Class of Paradoxes.''  Bull. Pure Appl. Sci. 14E, 109-110, 1995.
 
Le, C. T.  ``The Smarandache Class of Paradoxes.''  J. Indian Acad. Math. 18, 53-55, 1996.
 
Mitroiescu, I.  The Smarandache Class of Paradoxes.  Glendale, AZ: Erhus University Press, 1994.
 
Mitroiescu, I.  ``The Smarandache's Class of Paradoxes Applied in Computer Science.''
  Abstracts of Papers Presented to the Amer. Math. Soc. 16, 651, 1995.