
        0,&amp;\mathrm{otherwise}
    \end{cases}.
\end{equation}\]</span> <br><br><strong>Definition 9 (Full Trapezoidal)</strong>. From Definition 7 and 8, the <em>full trapezoidal</em> MF, herein notated as <span class="math inline">\(\mu_{\bigtriangledown}\)</span>, is defined as follows: <span class="math display">\[\begin{equation}
    \mu_{\bigtriangledown}(x_{jk}):=
    \begin{cases}
        \mu_{\bigtriangledown_{\downarrow}}(x_{jk}),&amp;\mathrm{min}\leq x_{jk}\leq v_i^*\\
        1,&amp;v_i^*&lt