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December 4, 2010 / porton

Discrete funcoid which is not complemented

I found an example of a discrete funcoid which is not a complemented element of the lattice of funcoids. Thus the set of discrete funcoids is not the center of the lattice of funcoids, as I conjectured earlier.

See the Appendix “Some counter-examples” in my article “Funcoids and Reloids”.

The example is simple diagonal relation.

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