[isabelle-dev] Quickcheck_Exhaustive.unknown

[Florian Haftmann]

> Unfortunately, the find_theorems command is quite ignorant to any means
> to hide facts:
> Facts that have been hidden, can be found.

Note that with »hide« you do *not* hide the artefacts, but their name
access.  The artefacts are still there.  You can still argue that anyway
find_theorems etc. should ignore everything which cannot by access by
name through the name space.

	Florian

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