Although the formal dictionary definition of reflects a mere shadow of the which our consciousness experiences, the definition is a good starting point. Following the definition is a list of synonyms which gives a broader sense of the of . The Homeless Mathematician notes the use of in the third alternative definition. This should be considered a categorical mistake and reflects the historical lack of clarification in the distinction between Form and Substance . A material of a particular kind or constitution.
Air has little substance.
Formal Formulations .