[isabelle-dev] Maintaining set/pred distinction in type annotations

2011-10-16 Thread Florian Haftmann 
Dear all,

please keep in mind that we are on track to (re-)introduce a type
constructor for sets.  I ask for solidarity: take this into account when
writing type annotations:

http://isabelle.in.tum.de/reports/Isabelle/file/2dd44cd8f963/src/HOL/Transitive_Closure.thy#l781

This should read:

lemma rel_pow_empty:
  0  n \Longrightarrow ({} :: ('a \times 'a) set) ^^ n = {}
  by (cases n) auto

Violating this produces duplicated effort for backporting changes etc.,
which can be invested better.

Florian

-- 

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Re: [isabelle-dev] mira on lxbroy10

2011-10-16 Thread Alexander Krauss 

On 10/16/2011 02:53 PM, Florian Haftmann wrote:

On lxbroy10, something is utterly wrong:

http://isabelle.in.tum.de/testboard/Isabelle/report/89d77033f6eb4dc196c199893871ae6d

Is anyone taking care for this?


Just tried to fix with Isabelle/efc2e2d80218.

In general, Lukas and Lars now also feel responsible for the mira 
installation at TUM, so in general there is no reason to panic :-)


Alex
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