It involves challenging the assumptions underlying the organization's strategy and value proposition. The key purpose is to provide evidence and justification for continuing with the investment proposition. Anything implied by a true elementary proposition is true. Such communications may yield information relevant for voter consideration in Proposition 218 tax elections. That would not alter the truth of the proposition. This was a controversial proposition for two reasons. Property owners rarely won assessment lawsuits on the merits prior to Proposition 218. Hughes vehemently opposed Japan's racial equality proposition. It defines high level concepts and the intrinsic value proposition of the product. Equality for All was the lead organization opposed to Proposition 8. Scholars disagree about the precise formulation of the first proposition. The central proposition was influential but highly controversial. Experts for the proposition and opposition present paper speeches to the house. Amazon has also seen great success through its customer proposition. Sykes publicly expressed being devastated when California voters passed state Proposition 8.