\textbf{``From Fundamental Motives to Rational Expectation Equilibrium[REE, henceworth] of Indeterminacy''}

For \textbf{``Principle of Indeterminacy'' }from Heisenberg states: \textit{``one of the fundamental cornerstone of quantum mechanics is the Heisenberg uncertainty principle''.}whereas canonically conjugate quantities can be determined simultaneously only with a characteristic indeterminacy[M. Arevalo Aguilar, \textit{et.}al]. Accompanying Alfred North Whitehead conclusion in \textbf{``The Aims of Education'' }that mathematical symbols are artificial before new meanings given, two kinds of fundamental motives: (i) expectation-expectation, (ii) expectation-certainty inherently occurs with determinacy properties of rational expectation equilibrium(REE, henceworth)- Guido Ascari {\&} Tizano Ropele:\textbf{''Trend inflation, Taylor principle {\&} Indeterminacy'', } Kiel Institute, June 2007. Furthers, relative price expression can be compare of their $\alpha $ and ( 1 -- $\alpha $ ) configurations in the expression of possible activity.