Procedure A can thus be applied at/with no extra cost.

Which is the correct preposition here?

  • I'd prefer at, but it doesn't make a difference either way. You could try pulling up a Google nGram to see if one is overwhelmingly more popular than the other. – Dan Bron Mar 21 '16 at 13:10
  • I tried Ngram but it came back empty: goo.gl/asL7mN. If they are interchangeable, could you say that in an answer so I can accept it? – Gabriel Mar 21 '16 at 13:10
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    Ah, that's because, unlike regular Google, you don't need to quote phrases. Anything separated by commas is considered an atomic phrase. Try this instead: books.google.com/ngrams/…. – Dan Bron Mar 21 '16 at 13:12
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    And I'm very glad to learn you tried searching nGrams first. It's worth telling us what you tried, even if it didn't work, when you ask the question. It'll improve the reception to your question, and get you better, faster answers (because at least we'll know what avenues have already been explored). – Dan Bron Mar 21 '16 at 13:14
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    I am running off to work now, and don't have time to answer, but feel free to add an answer of your own! You'll get rep (I have rep, so I don't need it). – Dan Bron Mar 21 '16 at 13:15

Thanks to Dan Bron who clarified that both prepositions can be used, and taught me the correct use of the NGram Viewer.

According to that tool, "at" is by far the most used preposition:

enter image description here

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  • But this easy (and on ELU obvious) addressing of the question shows that the question is actually off-topic (general reference / lack of research) on ELU and should be deleted. – Edwin Ashworth Mar 21 '16 at 16:10
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    The question was not about the number of hits in Ngram, it was about the correct usage of two prepositions. Dan confirmed that they were grammatically interchangeable, the rest is just common usage. – Gabriel Mar 21 '16 at 16:23
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    Hey, it's not a question of deep theoretical linguistics, but it is a proper question, and Gabriel has demonstrated congeniality and willingness to work within the system. Let's encourage him and others like him, not the opposite. If you need a better reason (though I think that's the best reason): I can easily imagine a tchrist- or Sven Yargs-level detailed answer to this question, going into etymology, comparative linguistics of the two prepositions, historical analysis, and so on. Even if no one makes that effort, the fact that they could indicates the question is leave-open-able. – Dan Bron Mar 21 '16 at 18:10
  • @Dan Bron Demonstrating a willingness to work within the system would involve showing evidence of using sources recommended at the Help Center in the question. Or perhaps you recommend (contrary to site policy) that everyone be shown how to use Google Ngrams, dictionaries etc when they post a question lacking evidence of such basic research. – Edwin Ashworth Mar 21 '16 at 23:09
  • @EdwinAshworth if you want to delete the question that bad just go ahead and do it. At this point I don't care anymore. Cheers. – Gabriel Mar 21 '16 at 23:13

Un my opinion i think 'at no cost ' is more commonly used un British English un particular when we talk about 'financial cost. While 'with nom cost' may refer to 'saving efforts or risks'

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  • Your answer reads to some extent as though you wrote it on a cell phone equipped with French auto-correct. Are you satisfied with the spelling? – Sven Yargs May 30 '18 at 4:20

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