Matt Cutts stated in 2009 that if Google finds more that one link to the same page, that it counts only the first link, and ignores all other links. This info is several years old now, but we have not yet found information about this changing. You can hear it direct from Matt Cutts at http://searchengineland.com/googles-matt-cutts-one-page-two-links-page-counted-first-link-192718.  Having multiple internal links to the same web page on your website will not hurt your website, and there is no need or reason to craft the link as a no-follow. Many webmaster have good reasons to have multiple links to the same web page, and Google certainly would not punish a website for this.