[isabelle-dev] NEWS: more informative errors in lazy enumerations

[Florian Haftmann]

>> Does anybody remember a use of the 'apply_end' command?
> Yes, there are two in JinjaThreads (theory J/ProgressThreaded), although
> they could be fused into the qed. However, I regularly use apply_end
> when I develop the method call for qed to finish off all the remaining
> cases after having dealt with the interesting ones.

I sometimes use a similar pattern, although in my situations a rewrite
from apply … proof … to proof … qed … is no problem.  So, I personally
do not care about, but I acknowledge Andreas' use case.

	Florian

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