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-rw-r--r--CHANGES2
-rw-r--r--doc/ProofGeneral.texi13
2 files changed, 9 insertions, 6 deletions
diff --git a/CHANGES b/CHANGES
index 55034825..4dec4118 100644
--- a/CHANGES
+++ b/CHANGES
@@ -21,7 +21,7 @@ the CVS ChangeLog and PG Trac, http://proofgeneral.inf.ed.ac.uk/trac.
to compile modules in parallel in the background while Proof
General stays responsive.
-*** Support for bullets and braces for Prooftree.
+*** Support for bullets, braces and Grab Existential Variables for Prooftree.
* Changes of Proof General 4.2 from Proof General 4.1
diff --git a/doc/ProofGeneral.texi b/doc/ProofGeneral.texi
index 58119672..628fae0f 100644
--- a/doc/ProofGeneral.texi
+++ b/doc/ProofGeneral.texi
@@ -4893,12 +4893,15 @@ versions of Prooftree are compatible with this version of Proof
General, @pxref{Graphical Proof-Tree Visualization} or the
@uref{http://askra.de/software/prooftree/, Prooftree website}.
-Proof-tree visualization does currently not support the command
-``Grab Existential Variables''.
-
For the visualization to work properly, proofs must be started
-with ``Proof.'', which is encouraged practice anyway (see Coq Bug
-#2776).
+with @code{Proof}, which is encouraged practice anyway (see Coq Bug
+#2776). Without @code{Proof} you lose the initial proof goal,
+possibly having two or more initial goals in the display.
+
+To support @code{Grab Existential Variables} Prooftree can
+actually display several graphically independent proof trees in
+several layers.
+
@c =================================================================
@c