title: Well-formed
text: # Well-formed
  
  Well-formed or wellformed indicate syntactic correctness and may refer to:
  
  * Well-formedness, quality of linguistic elements that conform to grammar rules
  * Well-formed formula, a string that is generated by a formal grammar in logic
  * Well-formed element, web design element that is properly designed and ordered
  * Well-formed document, XML document that adheres to the syntax rules of the XML 1.0 specification
  * Well-formed Petri net, a Petri net class
  * Well-formed scale, a class of musical scales
  