José A. Alonso<p><a href="https://mathstodon.xyz/tags/Exercitium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Exercitium</span></a>: Duplicación de cada elemento. <a href="https://jaalonso.github.io/exercitium/posts/2025/04/25-duplicacion_de_cada_elemento" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">jaalonso.github.io/exercitium/</span><span class="invisible">posts/2025/04/25-duplicacion_de_cada_elemento</span></a> <a href="https://mathstodon.xyz/tags/Haskell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Haskell</span></a> <a href="https://mathstodon.xyz/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Python</span></a> <a href="https://mathstodon.xyz/tags/CommonLisp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CommonLisp</span></a></p>