2010 0-7734-3608-1 The work brings into print for the first time the Tractatus expendens propositiones damnatas ab Alexandro VII written between 1670 and 1675 by the famous Spanish polymath Juan Caramuel Lobkowitz (1606-1682), one of the most eminent probabilist theologians of that time. After a brief summary of the main principles and methods of the probabilistic doctrine, this work illustrates Caramuel’s moral-theological output, highlights the structure and the most important arguments of the Tractatus, and finally focuses on the condemned propositions attributed to Caramuel himself.