DiscreteMath Sections DiscrMathExt Doc
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Def  !x:AP(x) == x:A. x is the x:AP(x)

is mentioned by

Thm*  P:(ABProp). (x:A!y:BP(x;y))  (A ~ (y:B{x:AP(x;y) }))[partition_type]
Thm*  Dec(P (!i:2. if i=0 P else P fi)[decidable_vs_unique_nsub2]
Def  1-1-Corr x:A,y:BR(x;y) == (x:A!y:BR(x;y)) & (y:B!x:AR(x;y))[is_one_one_corr_rel]

In prior sections: LogicSupplement

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DiscreteMath Sections DiscrMathExt Doc