diff --git a/yatexmth.el b/yatexmth.el
index 65dd4c5..f987f4c 100644
--- a/yatexmth.el
+++ b/yatexmth.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX math-mode-specific functions.
 ;;; yatexmth.el
-;;; (c)1993-2006 by HIROSE Yuuji [yuuji@yatex.org]
-;;; Last modified Thu May 27 16:33:55 2010 on firestorm
+;;; (c)1993-2010 by HIROSE Yuuji [yuuji@yatex.org]
+;;; Last modified Fri May 28 15:21:26 2010 on firestorm
 ;;; $Id$
 
 ;;; [Customization guide]
@@ -171,8 +171,10 @@
    ("II"	"amalg"		"II")
    ;	:
    ;;relational operators
-   ("<"		"leq"		("<\n-"		"��"))
-   (">"		"geq"		(">\n-"		"��"))
+   ("<"		"leq"		("<\n-"		"<\n-"))
+   ("=<"	"leqq"		("<\n="		"��"))
+   (">"		"geq"		(">\n-"		">\n-"))
+   (">="	"geqq"		(">\n="		"��"))
    ("-="	"equiv"		("=\n-"		YaTeX-image-equiv))
    ("=-"	"equiv"		("=\n-"		YaTeX-image-equiv))
    ("---"	"equiv"		("=\n-"		YaTeX-image-equiv))
@@ -207,7 +209,9 @@
    ("-<"	"prec"		("-<"		"��"))
    ("-<="	"preceq"	("-<\n-"	"��\n="))
    ("<<"	"ll"		("<<"		"�s"))
+   ("<<"	"lll"		"<<<")
    (">>"	"gg"		(">>"		"�t"))
+   (">>>"	"ggg"		">>>")
    ;	:
    ;;arrows
    ("<-"	"leftarrow"	("<-"		"��"))
diff --git a/yatexpkg.el b/yatexpkg.el
index c39cb74..ed2a368 100644
--- a/yatexpkg.el
+++ b/yatexpkg.el
@@ -1,8 +1,8 @@
 ;;; -*- Emacs-Lisp -*-
 ;;; YaTeX package manager
 ;;; yatexpkg.el
-;;; (c)2003-2006 by HIROSE, Yuuji [yuuji@yatex.org]
-;;; Last modified Sun Dec 24 15:13:29 2006 on firestorm
+;;; (c)2003-2010 by HIROSE, Yuuji [yuuji@yatex.org]
+;;; Last modified Fri May 28 15:16:04 2010 on firestorm
 ;;; $Id$
 
 (defvar YaTeX-package-ams-envs
@@ -31,6 +31,8 @@
     ("supertabular" (env "supertabular"))
     ("amsmath"	(env . YaTeX-package-ams-envs)
      		(section "tag" "tag*"))
+    ("amssymb"	(maketitle "leqq" "geqq" "mathbb" "mathfrak"
+			   "lll" "ggg")) ;very few.  Please tell us!
     ("graphicx" (section "includegraphics"
 			 "rotatebox" "scalebox" "resizebox" "reflectbox")
      		(option . YaTeX-package-graphics-driver-alist))