spectives
&gt; are enough to overwhelm a person at first, has been to stake
&gt; out an initial base camp at that simplest level of ontology
&gt; and conceptual framework that I can imagine, without being
&gt; completely trivial, the world of "zeroth order logic",
&gt; propositional calculus, truth table semantics, venn diagrams,
&gt; in short, the "alpha" part of Peirce's Existential Graphs.
&gt; 
&gt; This has certainly been a big enough bite to chew on for a while,
&gt; given the difficulties of the NP-c