[isabelle-dev] Towards localized syntax: bundle mixins for locale and class specifications – Discussion of alternatives

[Florian Haftmann]

Hi Clemens,

> Could you please explain what you mean by "surface context" in the
> documentation of the locale command:
> 
>> given bundles take effect in the surface context within both import
>> and body and the potentially following begin / end block
> 
> I'm trying to understand where exactly bundles in locale declarations
> are effective. I suppose they are not persisted beyond the locale
> declaration's begin /end block?

exactly.  The surface context is the epheneral hypothetical context on
top of the local theory stack without any permanent effect.

Hope this helps,
	Florian

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