* The main operations to certify logical entities are Thm.ctyp_of and Thm.cterm_of with a local context; old-style global theory variants are available as Thm.global_ctyp_of and Thm.global_cterm_of. INCOMPATIBILITY.
This refers to Isabelle/291934bac95e -- yet another step in the localization project.
There is a tiny semantic snag: both the local and global operations expand abbreviations from the *global* background theory. Mayne they should not do anything like that at all, and leave changes to the types/terms to the canonical "check" phases. But that is another reform, another time.
Hardly any values (thy: theory) should now show up in regular Isabelle/ML tool implementations. People who still think they don't understand proper (ctxt: Proof.context) things, should practise more of the art of mental abstraction -- and look at good examples in the Isabelle code base.
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