ay appear in a given interpretation of the most basic signs.
Just for example, think about the &quot;Entitative&quot; and the &quot;Existential&quot;
interpretations of Peirce's Logical Graphs, EnG and ExG, respectively.
In the RefLog version of it, the abstract expression &quot;((x)(y))&quot; enjoys
a dual interpretation:

| Under EnG, &quot;((x)(y))&quot; means &quot;not [not x or not y]&quot;, that is, &quot;x and y&quot;.
|
| Under ExG, &quot;((x)(y))&quot; means &quot;not [not x and not y]&quot;, that 