note blazar <blockquote><i>where that just says "make an arbitrarily long list of 1's and reduce them using concatenation (the ~ operator), returning partial results in a list".</i></blockquote> <p><em>I personally believe</em> that I need some clarifications: I understand clearly that the backslash implements the <em>"returning partial results" thingie,</em> but I am not sure about is semantics. In particular, is it a metaoperator modifying any binary operator, and if so, how? Or is really <c>[\ ]</c> a distinct metaoperator wrt <c>[ ]</c>, with the former being the <em>"reduction returning partial results"</em> and the latter simply <em>"reduction?"</em></p> <div class="pmsig"><div class="pmsig-409850"> <small><c>-- </c><br/> If you can't understand the [wp://incipit], then please check the <strong>[http://blazar.tumblr.com/post/17639246|IPB Campaign]</strong>.</small> </div></div> 716367 716497