From: Tobias Nipkow <firstname.lastname@example.org>
On 07/01/2022 15:12, Clemens Ballarin wrote:
Dear Isabelle Developers,
I'm working on an extension of the locale machinery by a means of declaring
morphisms for use in locale expressions. Currently morphisms only appear within
locale expressions. For example, in
interpretation my_locale where A = t and B = s
the parameters A and B of 'my_locale' are mapped to t and s from the current
context. The extension would introduce a new command 'morphism' for declaring
morphisms and a new keyword 'under' for referring to these morphisms in
morphism my_morphism where A = t and B = s
interpretation my_locale under my_morphism
I wonder if "with" could be reused instead?
This will be helpful especially in applications where locales have more than
just a handful of parameters.
I'm mainly writing to find out whether the new keywords 'morphism' and 'under'
would be considered appropriate in the current framework of Isabelle's outer
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