These justifications can be:
- the logical premises of the argument;
- thematic variations of the argument (examples of justifications for “Western Europe is in decline”: “Western Europe is in demographic decline”, “Western Europe is in economic decline” and “Western Europe is in cultural decline”);
- studies, testimonies and other factual elements that corroborate the argument;
- the general principles underlying this argument (examples of justifications of “The universe has a first cause”: “Matter cannot exist by itself”, “An infinite past is impossible ” and “There cannot be an infinity of causes”).
Each justification is the subject of a specific page which sets out its reasoning, its own justifications and its possible objections. Making the justifications explicit in this way makes it possible to deal separately with each of the elements of the reasoning on which the argument is based.