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diff --git a/html/about.phtml b/html/about.phtml index 7f7274c1..18ad95f1 100644 --- a/html/about.phtml +++ b/html/about.phtml @@ -4,7 +4,7 @@ The forefather of Proof General was LEGO mode, begun in 1994 at the <a href="http://www.dcs.ed.ac.uk/lfcs">LFCS</a> by Thomas Kleymann. LEGO mode was an Emacs-based front end for LEGO similar to David Aspinall's -<a href="http://www.dcs.ed.ac.uk/home/da/Isamode">Isamode</a>, +<a href="http://zermelo.dcs.ed.ac.uk/~isamode">Isamode</a>, developed at the LFCS since 1992. After 1994, implementations of proof-by-pointing and script management were added to LEGO mode, and the code was made generic. The generic basis was developed by |