Ordinals and Cardinals

Andrei Popescu

1 September 2009


We develop a basic theory of ordinals and cardinals in Isabelle/HOL, up to the point where some cardinality facts relevant for the ``working mathematician" become available. Unlike in set theory, here we do not have at hand canonical notions of ordinal and cardinal. Therefore, here an ordinal is merely a well-order relation and a cardinal is an ordinal minim w.r.t. order embedding on its field.
BSD License

Change history

[2012-09-25] This entry has been discontinued because it is now part of the Isabelle distribution.


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