Wed, 06 Jan 2016 20:46:14 +0800 zhangx ExtGG.thy finished, but more comments are needed.
Tue, 22 Dec 2015 23:13:31 +0800 zhangx In the middle of retrofiting ExtGG.thy.
(0) -30 -10 -2 +2 +10 +30 +100 tip