Which of the following sentence is correct?

As mentioned in the Chapter 7,


As mentioned in Chapter 7

I do not think "the" is necessary as it clearly mentions about chapter number.

  • 2
    Actually "Chapter 7" is the name of the chapter, so no article is used. "As mentioned in the seventh chapter." would be OK though.
    – user3169
    Jul 30, 2016 at 5:26
  • 2
    Related: Where can I find Room 401? Jul 30, 2016 at 5:33
  • 1
    @ARYF - Book titles and chapter headings are treated as proper nouns, as every elementary English textbook and instructional website makes clear! Did you do any research? Jul 30, 2016 at 6:17
  • I don't know why, but Chapter 7 and Chapter 13 seem to be mentioned quite often lately. :P Jul 30, 2016 at 7:41

1 Answer 1


By 'numbering' it, you are making a definite reference to that chapter. It is seventh. Thus, it'd serve like a proper noun. It'll go without any article.

As mentioned in Chapter 7

However, 'the' is possible when it does not serve as a proper noun

As mentioned in the seventh chapter


Have you read the chapter on Skeleton System?

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