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By Ildar Sagdejev. From Commons. CC-BY-SA

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  • Church-Kleene ordinal

    An ordinal is considered recursive iff it is the order type of a computable well-ordering of a...

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current20:53, July 19, 2015Thumbnail for version as of 20:53, July 19, 20153,888 × 2,592 (3.12 MB)Vel! (Talk | contribs)By Ildar Sagdejev. From [ Commons]. CC-BY-SA


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