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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks for the tip.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">This works but usually the 2<sup>nd</sup> definition is a slight modification of the first. E.g. first I show how constructors can be derived and then I mention that one can use the constructor keyword…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thorsten<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Philip Wadler <wadler@inf.ed.ac.uk><br>
<b>Date: </b>Sunday, 2 August 2020 at 13:59<br>
<b>To: </b>Thorsten Altenkirch <psztxa@exmail.nottingham.ac.uk><br>
<b>Cc: </b>"agda@lists.chalmers.se" <agda@lists.chalmers.se><br>
<b>Subject: </b>Re: [Agda] Shadowing definitions<o:p></o:p></span></p>
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<p class="MsoNormal">Thorsten, would the following trick work? Go well, -- P<o:p></o:p></p>
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<p class="MsoNormal">\definemacro{\mydef}{<o:p></o:p></p>
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<p class="MsoNormal">\begin{code}<o:p></o:p></p>
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<p class="MsoNormal">answer = 42<o:p></o:p></p>
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<p class="MsoNormal">\end{code}<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">... first use of definition ...<o:p></o:p></p>
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<p class="MsoNormal">\mydef<o:p></o:p></p>
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<p class="MsoNormal">... second use of same definition ...<o:p></o:p></p>
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<p class="MsoNormal">\mydef<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">. \ Philip Wadler, Professor of Theoretical Computer Science,<br>
. /\ School of Informatics, University of Edinburgh<o:p></o:p></p>
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<p class="MsoNormal">. / \ and Senior Research Fellow, IOHK<o:p></o:p></p>
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<p class="MsoNormal">. <a href="http://homepages.inf.ed.ac.uk/wadler/" target="_blank">
http://homepages.inf.ed.ac.uk/wadler/</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sun, 2 Aug 2020 at 13:16, Thorsten Altenkirch <<a href="mailto:Thorsten.Altenkirch@nottingham.ac.uk">Thorsten.Altenkirch@nottingham.ac.uk</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi guys,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I am currently working on my book “The Tao of Types” and I am now using literate agda and lhs2tex with agda mode . One issue is that for pedagogical reasons I like to repeat definitions
but agda doesn’t allow this. Ok, I can declare the first definition as a spec which means it is ingnored by literate agda. I don’t really like this because it means that there is no type checking for the first definition. Also in some cases this doesn’t work
and I have to go through all sort of tricks to make the code work. Is there a workaround, or would it be possible to allow shadowing (unsafely)?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Btw, another problem I have is to switch between agda-mode and latex-mode in emacs. I discovered that C-C C-n in latex mode switches to agda mode (not sure why) is there a key combination
to switch from agda to latex? <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Cheers,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thorsten<o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
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