Some notes on Plex

Plex is the scientific philosophy for "Understanding our understanting of the nature of Nature" of D.T.Ross (since late 1950s) which has a formalism of Formal Seeings and Formal Sayings (of PLMs). This formalism is the same, but is precisely the opposite of, the accepted Formal Systems approach (Formal Language and derivation rules coupled to a Model by a Satisfies predicate, for completeness and consistency matters) except that, in Plex, the model comes first and the language (at each stage) is only what shows in the model, with No-Rule Seeing. Plex has no axioms or assumptions, only definitions, and "Only that which is known by definition is known, by definition." is its Epistomology. The First Definition of Plex is Nothing doesn't exist. SA derives from the Clear Model, which has no Picture at all -- only a brief Saying specifying what is Present and what is Absent..(Small wonder that Plex annoys and is ignored by busy mathematicians.)