Tag Archives: ZF set theory

Axiom of Foundation in Zermelo Fraenkel Set Theory

I pointed out, in the earlier page of my blog, that Pat and Brian said in RDF Semantics, “Such ‘membership loops’ might seem to violate the axiom of foundation, one of the axioms of standard (Zermelo-Fraenkel) set theory, which forbids … Continue reading

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What is Russell paradox?

Even if we restrict ourselves to select only sets that do not include the membership loop, we cannot avoid a paradox on a kind of naive formal systems such that contains inside the infinity or the totality. See the following … Continue reading

Posted in LOD, OWL, RDF, Semantic Web | Tagged , , , , | 1 Comment