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Correspondence between enumerated subobjects and k-finite subobjects

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Dan Frumin
2017-08-03 23:21:43 +02:00
parent f106be08de
commit 90d795b708
3 changed files with 75 additions and 5 deletions
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FiniteSets/variations/k_finite.v
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@@ -8,7 +8,7 @@ Section k_finite.
Definition map (X : FSet A) : Sub A := fun a => isIn a X.
Instance map_injective : IsEmbedding map.
Global Instance map_injective : IsEmbedding map.
Proof.
apply isembedding_isinj_hset. (* We use the fact that both [FSet A] and [Sub A] are hSets *)
intros X Y HXY.