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    <div class="moz-cite-prefix">Oke, <br>
      <br>
      And how do I do this.  Haskell is a difficult one to learn,<br>
      <br>
      Roelof<br>
      <br>
      <br>
      <br>
      Alexey Shmalko schreef op 12-5-2015 om 16:24:<br>
    </div>
    <blockquote
cite="mid:CAFC2PC5DKojdFxwHDdFK_8n05O59aj7_Zrp74w4T3Wk2eWBBpw@mail.gmail.com"
      type="cite">
      <div dir="ltr">Before cons'ing the result of init', you should
        check whether it's Just or Nothing. What you're doing now is
        something along the line with 5 : Just 3 -- this won't
        typecheck.<br>
      </div>
      <br>
      <div class="gmail_quote">On Tue, May 12, 2015 at 5:22 PM Roelof
        Wobben <<a moz-do-not-send="true"
          href="mailto:r.wobben@home.nl">r.wobben@home.nl</a>> wrote:<br>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div bgcolor="#FFFFFF" text="#000000">
            <div>Brandon Allbery schreef op 12-5-2015 om 16:16:<br>
            </div>
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            <blockquote type="cite">
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                <div class="gmail_extra">
                  <div class="gmail_quote">On Tue, May 12, 2015 at 10:11
                    AM, Roelof Wobben <span dir="ltr"><<a
                        moz-do-not-send="true"
                        href="mailto:r.wobben@home.nl" target="_blank">r.wobben@home.nl</a>></span>
                    wrote:<br>
                    <blockquote class="gmail_quote" style="margin:0 0 0
                      .8ex;border-left:1px #ccc solid;padding-left:1ex">
                      <div bgcolor="#FFFFFF" text="#000000">
                        <div>I do not understand what you are saying to
                          me.<br>
                          <br>
                          I know that init produces a Maybe [a] . That
                          is why I did put a Just before it.<br>
                        </div>
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                    </blockquote>
                    <div><br>
                    </div>
                    <div>You are invoking it again though, and using its
                      result as if it produces [a] instead of Maybe [a].</div>
                  </div>
                  <div><br>
                  </div>
                  -- <br>
                  <div>
                    <div dir="ltr">
                      <div>brandon s allbery kf8nh                      
                                sine nomine associates</div>
                      <div><a moz-do-not-send="true"
                          href="mailto:allbery.b@gmail.com"
                          target="_blank">allbery.b@gmail.com</a>      
                                                   <a
                          moz-do-not-send="true"
                          href="mailto:ballbery@sinenomine.net"
                          target="_blank">ballbery@sinenomine.net</a></div>
                      <div>unix, openafs, kerberos, infrastructure,
                        xmonad        <a moz-do-not-send="true"
                          href="http://sinenomine.net" target="_blank">http://sinenomine.net</a></div>
                    </div>
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            <br>
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          <div bgcolor="#FFFFFF" text="#000000"> What is then the right
            way to do. I still do not understand what you are trying to
            make clear to me.</div>
          <div bgcolor="#FFFFFF" text="#000000"><br>
            <br>
            Roelof</div>
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