Editing 1090: Formal Languages

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The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
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| number    = 1090
 
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| date      = August 3, 2012
 
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| title    = Formal Languages
 
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| image    = formal_languages.png
 
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| titletext = [audience looks around] 'What just happened?' 'There must be some context we're missing.'
 
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}}
 
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==Explanation==
 
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This joke is a play on the phrase {{w|context-free grammar}}, which is a technical term used in {{w|formal languages|formal language}} theory.
 
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Cueball crashes Megan's speech on formal language theory, nonsensically shouts "Grammar!" without any context, and runs off. Because the gag is delivered in a particularly obtuse manner, the title text clears things up by having the confused audience mention "missing context", thus having them unwittingly explain the joke.
 
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The concept of context-free grammar is incredibly nuanced and nigh impossible to rephrase in layman's terms. Luckily, the joke only interprets the phrase "context-free grammar" literally, so no understanding of the actual subject is required.
 
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A context-free grammar can be described as a dictionary, translating single symbols to one or multiple symbols, who then are replaced again, until no further replacements are possible. If a string of symbols adheres to this grammar, it can be reconstructed solely by following these kind of orders.
 
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==Transcript==
 
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:[A large banner is hanging over a podium, where a speaker (Megan) is standing behind a lectern. Cueball crashes through the left side of the panel, scattering glass.]
 
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:Banner. 10th Annual Symposium on Formal Languages
 
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:''Crash''
 
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:[Cueball stops in front of Megan spreads out his hands and shouts:]
 
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:Cueball: Grammar!
 
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:[Cueball then runs off the right side of the panel, so swiftly he leaves a cloud of dust in his wake. Megan at the podium just looks after him silently.]
 
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{{comic discussion}}
 
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[[Category:Comics featuring Cueball]]
 
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[[Category:Comics featuring Megan]]
 
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[[Category:Logic]]
 
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[[Category:Language]]
 
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[[Category:Math]]
 
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[[Category:Public speaking]]
 
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[[Category:Puns]]
 

Please note that all contributions to explain xkcd may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see explain xkcd:Copyrights for details). Do not submit copyrighted work without permission!

To protect the wiki against automated edit spam, we kindly ask you to solve the following CAPTCHA:

Cancel | Editing help (opens in new window)

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