Admin/BUGS
changeset 4382 c1536da54f52
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4381:99dfc9171f1e 4382:c1536da54f52
       
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     2 Isabelle BUGS -- history of reported faults
       
     3 ===========================================
       
     4 
       
     5 1.  Symptom: hyp_subst_tac does nothing if the selected equality involves type
       
     6     unknowns.  Cause: it uses the simplifier, which ignores such equalities.
       
     7     Fix: check for type unknowns in hypsubst/inspect_pair;  change interface
       
     8     function dest_eq to return the type of the equality. (lcp, 5/11/97)
       
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    10 2.  Symptom: read_instantiate_sg has problems instantiating types in some
       
    11     simultaneous instantiations (Message-id: <199710301432.PAA20594@sirius.Informatik.Uni-Bremen.DE> on isabelle-users)