diff --git a/app/controllers/wiki_controller.rb b/app/controllers/wiki_controller.rb
index e64541dc3..1befa98e9 100644
--- a/app/controllers/wiki_controller.rb
+++ b/app/controllers/wiki_controller.rb
@@ -567,7 +567,7 @@ def parse_category
       @set_name = 'the web'
     end
   end
-  
+
   def render_atom(hide_description = false, limit = 15)
     @pages_by_revision = @web.select.by_revision.first(limit)
     @hide_description = hide_description
diff --git a/app/models/page_set.rb b/app/models/page_set.rb
index f8e84df4b..a1d1dda13 100644
--- a/app/models/page_set.rb
+++ b/app/models/page_set.rb
@@ -29,12 +29,12 @@ def by_name
   def by_revision
     PageSet.new(@web, sort_by { |page| page.revised_at }).reverse 
   end
-  
+
   def pages_that_reference(page_name)
     all_referring_pages = WikiReference.pages_that_reference(@web, page_name)
     self.select { |page| all_referring_pages.include?(page.name) }
   end
-  
+
   def pages_that_link_to(page_name)
     all_linking_pages = WikiReference.pages_that_link_to(@web, page_name)
     self.select { |page| all_linking_pages.include?(page.name) }
@@ -60,7 +60,7 @@ def characters
   # pages in this set for which there is no reference in the web.
   # The HomePage and author pages are always assumed to have
   # references and so cannot be orphans
-  # Pages that refer to themselves and have no links from outside are oprphans.
+  # Pages that refer to themselves and have no links from outside are orphans.
   def orphaned_pages
     never_orphans = web.authors + ['HomePage']
     self.select { |page|
diff --git a/app/views/layouts/tex.rhtml b/app/views/layouts/tex.rhtml
index 4b4a5a727..13eebe06b 100644
--- a/app/views/layouts/tex.rhtml
+++ b/app/views/layouts/tex.rhtml
@@ -159,6 +159,8 @@
 \Decl@Mn@Close{\rrangle}{mnomx}{'171}
 \Decl@Mn@Open{\lmoustache}{mnomx}{'245}
 \Decl@Mn@Close{\rmoustache}{mnomx}{'244}
+\Decl@Mn@Open{\llbracket}{stmry}{'112}
+\Decl@Mn@Close{\rrbracket}{stmry}{'113}
 \makeatother
 
 % Widecheck
diff --git a/test/functional/wiki_controller_test.rb b/test/functional/wiki_controller_test.rb
index 16698129e..0cf39ef7a 100755
--- a/test/functional/wiki_controller_test.rb
+++ b/test/functional/wiki_controller_test.rb
@@ -1255,6 +1255,8 @@ def set_tex_header
 \Decl@Mn@Close{\rrangle}{mnomx}{'171}
 \Decl@Mn@Open{\lmoustache}{mnomx}{'245}
 \Decl@Mn@Close{\rmoustache}{mnomx}{'244}
+\Decl@Mn@Open{\llbracket}{stmry}{'112}
+\Decl@Mn@Close{\rrbracket}{stmry}{'113}
 \makeatother
 
 % Widecheck
diff --git a/test/unit/page_renderer_test.rb b/test/unit/page_renderer_test.rb
index d78bcc541..5ff0f7f9a 100755
--- a/test/unit/page_renderer_test.rb
+++ b/test/unit/page_renderer_test.rb
@@ -420,6 +420,18 @@ def test_have_latest_itex2mml
         %{hscr{ABCD}\\mathcal{ABCD}</annotation></semantics></math></p>},
         'Foo $\mathscr{ABCD}\mathcal{ABCD}$')
 
+        assert_markup_parsed_as(
+          %{<p>Foo <math class='maruku-mathml' display='inline' xmlns='http://www.w3.org/1998/Math/MathML'><semantics>} +
+          %{<mrow><mrow><mo>⟦</mo><mrow><mtable displaystyle='false' rowspacing='0.5ex'><} +
+          %{mtr><mtd><mi>a</mi></mtd></mtr> <mtr><mtd><mi>b</mi></mtd></mtr> <mtr><mtd><mi>c</mi>} +
+          %{</mtd></mtr></mtable></mrow><mo>⟧</mo></mrow><mrow><mo>‖</mo><mrow><mtable displaystyle='false' rowspacing='0.5ex'>} +
+          %{<mtr><mtd><mi>a</mi></mtd></mtr> <mtr><m} +
+          %{td><mi>b</mi></mtd></mtr> <mtr><mtd><mi>c</mi></mtd></mtr></mtable></mrow><mo>|} +
+          %{</mo></mrow></mrow><annotation encoding='application/x-tex'>\\left\\llbracket\\begin{matrix}} +
+          %{a\\\\ b\\\\ c\\end{matrix}\\right\\rrbracket \\left\\lVert\\begin{matrix}a\\\\ b\\\\ c\\end{matrix}} +
+          %{\\right\\rvert</annotation></semantics></math></p>},
+          %{Foo $\\left\\llbracket\\begin{matrix}a\\\\ b\\\\ c\\end{matrix}\\right\\rrbracket \\left\\lVert\\begin{matrix}a\\\\ b\\\\ c\\end{matrix}\\right\\rvert$})
+
   end
   
   def test_blahtex