The term *darr* occurs in indexes or keywords of following Zvon materials:

- Characters
- Mathematical Markup Language (MathML) Version 2.0 :
**darr**[*Entities*]an XML application for describing mathematical notation and capturing both its structure and contentMathematical Markup Language (MathML) Version 2.0 :**Darr**[*Entities*]an XML application for describing mathematical notation and capturing both its structure and contentMathematical Markup Language (MathML) Version 2.0 :**dArr**[*Entities*]an XML application for describing mathematical notation and capturing both its structure and contentXHTML 1.0 Strict Reference :**dArr : ⇓**[*Entities*]a reformulation of HTML 4 as an XML 1.0 application with strict rules and without HTML 4.0 deprecated elements and attributesXHTML 1.0 Strict Reference :**darr : ↓**[*Entities*]a reformulation of HTML 4 as an XML 1.0 application with strict rules and without HTML 4.0 deprecated elements and attributes - External resources
*HTML related materials*http://comp*MathML Test Suite 2.0*http://www.w3.org*DTD/xhtml1-strict.dtd*http://www.w3.org*Mathematical Markup Language (MathML) Version 2.0*http://www.w3.org*HTML 4.01 Specification*http://www.w3.org*XHTML Modularization 1.1*http://www.w3.org

Zvon keyword: *darr*

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