3 files changed, 3 insertions, 3 deletions
diff --git a/schema/mathml2/content/calculus.xsd b/schema/mathml2/content/calculus.xsd
index 1b8fdb0e0305..abc057a8fec5 100644
--- a/schema/mathml2/content/calculus.xsd
+++ b/schema/mathml2/content/calculus.xsd
@@ -9,7 +9,7 @@
 
 <xs:annotation>
   <xs:documentation>
-  This is an XML Schema module for the calculs operators of content
+  This is an XML Schema module for the calculus operators of content
   MathML.
   Author: St&#233;phane Dalmas, INRIA.
   </xs:documentation>
diff --git a/schema/mathml2/content/constants.xsd b/schema/mathml2/content/constants.xsd
index a22548e26946..fc9cf8cdc029 100644
--- a/schema/mathml2/content/constants.xsd
+++ b/schema/mathml2/content/constants.xsd
@@ -44,7 +44,7 @@
 <xs:element name="true" type="Constant.type"/>
 <xs:element name="false" type="Constant.type"/>
 
-<!-- Infinty -->
+<!-- Infinity -->
 
 <xs:element name="infinity" type="Constant.type"/>
 
diff --git a/schema/mathml2/content/vector-calculus.xsd b/schema/mathml2/content/vector-calculus.xsd
index 3e5dd9ce2244..12b0f85fd912 100644
--- a/schema/mathml2/content/vector-calculus.xsd
+++ b/schema/mathml2/content/vector-calculus.xsd
@@ -9,7 +9,7 @@
 
 <xs:annotation>
   <xs:documentation>
-  This is an XML Schema module for the vector calculs operators of content
+  This is an XML Schema module for the vector calculus operators of content
   MathML. 
   Author: St&#233;phane Dalmas, INRIA.
   </xs:documentation>