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Elements of union

This commit is contained in:
Niels
2017-05-24 14:52:52 +02:00
parent 826b6ba233
commit 74cd449f7b

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@@ -428,5 +428,11 @@ hrecursion X; try (intros ; apply set_path2).
rewrite <- P.
rewrite <- Q.
Admitted.
Theorem union_isIn (X Y : FSet A) (a : A) : isIn a (U X Y) = orb (isIn a X) (isIn a Y).
Proof.
reflexivity.
Defined.
End properties.