d of a number of elements:</p>
<ul style="border-style: initial; border-color: initial;"><li style="border-style: initial; border-color: initial;">a sentence</li>
<li style="border-style: initial; border-color: initial;">a microtheory</li>
<li style="border-style: initial; border-color: initial;">a truth value</li>
<li style="border-style: initial; border-color: initial;">a direction (or access level)</li>
<li style="border-style: initial; border-color: initial;">a support</li>
</ul><p style="border-style: 