I presented two solutions to a problem in an article. I called them solution 1 and solution 2.

Solution 1 is better than solution 2 in terms of the efficiency.

When I refer to either one of them, which one is correct?

  1. solution 1 (or 2)
  2. Solution 1 (or 2)
  3. the solution 1 (or 2)
  • 2
    In what context? In a title you'd use title case. In a paragraph you'd probably not use title case, unless you were referring to a title in your write up.
    – James K
    Commented Apr 21, 2022 at 1:03
  • @JamesK I added it in the question. Thanks for pointing that out!
    – Joji
    Commented Apr 21, 2022 at 2:38
  • If you are using Solution 1 and Solution 2 as proper nouns, then you must capitalise them each time they are used as you would with any other proper noun.
    – Joe Dark
    Commented Apr 21, 2022 at 17:12

1 Answer 1


No capitals and no articles. "Solution 1 is better than solution 2."

But if you use ordinal numbers, then do use "the": "The first solution is better than the second."

  • 1
    ... no capitals except the usual one at the start of the sentence :-)
    – JavaLatte
    Commented Apr 21, 2022 at 3:04

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