Re: [isabelle] Loose bound variable

On 18/02/10 16:27, Andreas Lochbihler wrote:
> However, simp (and all methods
> that use the simplifier) produce only this error message:
> *** exception TYPE raised (line 341 of "sign.ML"): Loose bound variable:
> B.4
> *** At command "apply".

Hi Andreas,

thanks for reporting this problem. The exception was caused by a bug in
(r)trancl_tac, which is installed in the simpset as a solver. I have fixed
this in the repository version of Isabelle, see


Dr. Stefan Berghofer               E-Mail: berghofe at
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