Adpositional Argumentation is a new formal method that combines the Periodic Table of Arguments and Constructive Adpositional Grammars to represent linguistic and pragmatic information in argumentative discourse. It bridges computational argumentation with traditional argumentation theory and rhetoric. The method annotates natural language texts using adpositional trees that explicate the logic stemming from the discourse at different levels of abstraction without losing information. Summarizing an example text on Copernicus and Aristarchos, the method reveals the argumentation structures and patterns in the text and shows where the underlying logic originates.