What is valid XML?

Related questions

1. Is 0 true or false in C++?
2. Can Notepad ++ run Python?
3. How do I sort in Notepad ++?
4. How do you write C or C++ programs in Notepad and run it?
5. Can you compare two Excel documents?
6. What is difference between well formed and valid XML?
7. What is DTD example?
8. How can I compare two strings in C++?
9. Can you compare strings with ==?
10. What is Xmllint?

Tags

1. #attributes
2. #semantics
3. #validation
4. #declaration
5. #valid
6. #refers
7. #words
8. #formedness
9. #against
10. #proper
11. #closed
12. #thing
13. #succeeds
14. #order
15. #first
16. #validity
17. #syntax
18. #other
19. #formed