X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=src%2Fpretty.ml;h=c54d0edc526a9e0fdbed10dfe5bdbdbeffc2ab22;hb=73755ec720254766e4504ac72684be5e357b6939;hp=02c413f6950349bccb25cf79e86b29ec3b2e385e;hpb=cba2938d929fd5119b1491686ddc224d5af618c6;p=tatoo.git

diff --git a/src/pretty.ml b/src/pretty.ml
index 02c413f..c54d0ed 100644
--- a/src/pretty.ml
+++ b/src/pretty.ml
@@ -13,6 +13,10 @@
 (*                                                                     *)
 (***********************************************************************)
 
+(*
+  Time-stamp: <Last modified on 2013-01-30 19:08:11 CET by Kim Nguyen>
+*)
+
 open Format
 
 exception InvalidUtf8Codepoint of int
@@ -86,6 +90,7 @@ let up_arrow = "↑"
 let right_arrow = "→"
 let left_arrow =  "←"
 let epsilon = "ϵ"
+let big_sigma = "∑"
 let cap = "∩"
 let cup = "∪"
 let lnot = "¬"