On 16.09.2013 19:08, Florian Haftmann wrote:
However the current implementation of Raw_Simplifier.rewrite (see patch
below) awaits a concrete application to a cterm before actually building
the corresponding simpset in »the« context.

I see the same dynamic building of the simpset in Isabelle2013.  But you
are right that the full absorption of the simpset into the context has
lead to situations that are a bit more dynamic than before, i.e. the
simpset is produced later when the tool is applied.

I see some effect on this in HOL-Algebra, for example UnivPoly.thy:

  context UP_Ring begin

gives me a bunch of "Ignoring duplicate rewrite rule". This is the same behaviour as before. But every lemma statement in this context has now the same warnings.

(This is in 7613573f023a).

  -- Lars
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