Journal of Hebei University (Natural Science Edition) ›› 2010, Vol. 30 ›› Issue (3): 323-326.DOI: 10.3969/j.issn.1000-1565.2010.03.021

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Shape and Shape Type Based on the First Order Predicate and Category Theory

LU Su-kui   

  • Online:2010-05-25 Published:2010-05-25

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