I asked a unique question, I agree that implicitly the answer of the other question leads to a answer of my question through inference logic. But, the question is unique and very different than the duplicate. So if someone searches for the question he will not find it.

The claim "This question has been asked before" is provable wrong.

Can you execute a contract twice in one block?

  • 2
    I thought they would still be in search... It can be flagged to be reopened. I agree limited dupes are ok and I'll follow ths more (esp if they don't show in search): blog.stackoverflow.com/2010/11/… With the question in OP, is it the title that's different, or the content in the OP? Hard to tell what the difference is in the content; the title is clearly different.
    – eth Mod
    Jun 2, 2016 at 19:34
  • The content is also different, all but the last sentence. Dont know about search either. Atwood loves duplicates, now I don't know what to do with this info... Jun 2, 2016 at 19:42
  • +1 flag it for reopening and let the community decide.
    – q9f
    Jun 2, 2016 at 20:03

1 Answer 1


A question is an "exact duplicate" if it will generate the same answers as another previous question and doesn't expand the topic in a substantial way. So, it must both produce similar answers but disallow completely different answers.

We keep the duplicate headers, because they redirect more people to find the correct answers as they can now discover them through different search terms. It is not necessary that the question is phrased exactly the same.

  • Politely disagree. the administrators have put a "This question already has an answer here:" which makes totaly sense. "This question is duplicate" not. It is much better to communicate clearly than introducing a technical jargon that should rectify what would have been easier to say straight in the first place. "exact duplicate". Even the newly introduced term doesn't make sense. Semantically and by common sense a question is an exact duplicate if the same is asked, not(!) if the answer is the same. "Is it raining?" and "is 1+1=2?" are "exact duplicates" by your standard ;-) Jul 5, 2016 at 9:02
  • Actually, the question you linked above was closed as a duplicate. This shows up with an [duplicate] appended to the title, and a textbox linking where the question was previously answered. This close-reason is called "exact duplicate" although I like to put it into quotation marks because it's not "exact" in the literal sense. Your example in the end doesn't adhere to what I stated here, because weather and formal logic are completely different topics which allow vastly different answers: "Yes, it's raining" and "Yes, it's even an axiom" are not interchangeable answers.
    – Murch
    Jul 5, 2016 at 9:46
  • Meanwhile "Can I do X twice?" would be a duplicate of "How often can I do X?" which it appears to be the case here. On the other hand, "How often can I do X?" wouldn't necessarily a duplicate of "Can I do X twice?".
    – Murch
    Jul 5, 2016 at 9:47
  • why do you need the word 'exact', are there unexact duplicates? Jul 5, 2016 at 12:59
  • I was going to say that it's just the name the duplication close reason has, but I've realized that they've dropped the "exact" meanwhile. Sorry, I hadn't realized that it had changed.
    – Murch
    Jul 5, 2016 at 13:02

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