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<h1><b>Alfonso Parra Rubio. </b>  aprubio [at] mit.edu</h1>
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    <p><span class = "weeknum"><a href="https://alfonso.pages.cba.mit.edu/home/"> _About me</a>   </span></p>
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<h1>Problem Set 1.</h1>
<h4><b>Corresponding to Lectures 1 and 2</b> </h4>


<h4><b>Lecture 2</b></h4>
<p>Local behaviour of fold pattern. Single Vortex Crease Pattern, Kawasakis and Maekawas theorems, mountain valley map. </p>



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