DiscreteMath Sections DiscrMathExt Doc
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RankTheoremName
4Thm*  () ~ [card_nat_vs_nat_nat]
cites the following:
3Thm*  (f:(AB). Bij(ABf))  (B ~ A)[bij_iff_1_1_corr_version2a]
2Thm*  Bij(; nat_to_nat_pair)[nat_to_nat_pair_bij]
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DiscreteMath Sections DiscrMathExt Doc