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This is a paragraph.
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Invalid Internal Link
Valid Internal Link
External Link

Human beings face ever more complex and urgent problems, and their effectiveness in dealing with these problems is a matter that is critical to the stability and continued progress of society.

- Doug Engelbart, 1961

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2. Ordered nested list item
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Task item 1
- Subtask 1
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cd ~/Desktop

function fancyAlert(arg) {
  if(arg) {
    $.facebox({div:'#foo'})
  }
}

This is a simple footnote^[1].

You can also use inline footnotes. ^[2]

This is an comment.

First name	Last name
Max	Planck
Marie	Curie

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Markdown syntax

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Content	Content	Content

This is an inline math expression .

This is the referenced text.↩︎
This is an inline footnote.↩︎