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563 end-users using existing notation for attributes (cf.\ |
563 end-users using existing notation for attributes (cf.\ |
564 \secref{sec:attributes}). |
564 \secref{sec:attributes}). |
565 |
565 |
566 For example, the predefined configuration option @{attribute |
566 For example, the predefined configuration option @{attribute |
567 show_types} controls output of explicit type constraints for |
567 show_types} controls output of explicit type constraints for |
568 variables in printed terms (cf.\ \secref{sec:parse-print}). Its |
568 variables in printed terms (cf.\ \secref{sec:read-print}). Its |
569 value can be modified within Isar text like this: |
569 value can be modified within Isar text like this: |
570 *} |
570 *} |
571 |
571 |
572 declare [[show_types = false]] |
572 declare [[show_types = false]] |
573 -- {* declaration within (local) theory context *} |
573 -- {* declaration within (local) theory context *} |