tor <span class="math inline">\(k\)</span>, <span class="math inline">\(\forall j \in \mathbb{Z}_{[1,n]}\)</span> and <span class="math inline">\(\forall k \in \mathbb{Z}_{[1,m]}\)</span>, and let <span class="math inline">\([v_{i},v_{i+1})\in\mathscr{V}\)</span> be the crop’s parameter intervals, <span class="math inline">\(\forall i\in\mathbb{Z}_{[0,p-1]}\)</span>, then the <em>lower</em> or <em>left triangular</em> MF, herein notated as <span class="math inline">\(\mu_{\triangle_{\downarrow}}\)</span>,