Re: [isabelle] New error messages in Isabelle 2013
On Wed, 30 Jan 2013, Lars Noschinski wrote:
I am still confused about this confusion. Taking the above specification
in isolation, it is already what happens in Isabelle2013-RC2: you see
the error "immediately" in the output of the by command, assuming that
window is open in the old-fashioned manner; it also works Proof General.
If you don't have output open, then pointing at the red squiggles of
"auto" gives the error more quickly.
I think Peter's point is that he would not like to work with a version
of Isabelle where you cannot see directly what is happening at the
When you say "the editing focus" and "directly" it already has a strong
bias towards the TTY model. Isabelle/jEdit is moving more and more away
from that, as far as it becomes feasible. I am especially interested to
see decent Isar proof editing facilities, without the TTY side-conditions.
This does not mean that the Output panel of Isabelle/jEdit will just
disappear in the next release. There are applications where you do need
free-form output from commands.
There are important special cases though:
(1) proof development, especially structured proof development
(2) feedback from ATPs via sledgehammer etc.
Here I can imagine more direct user interface support than the old TTY
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