Rationale is the first high-quality "argument processing" software. Use Rationale to create argument maps, diagrams of reasoning and argument. Rationale will help students learn the fundamentals of good reasoning, critical thinking, and argumentative essay writing; and it will help professionals (e.g., lawyers, analysts, policy makers) handle complex reasoning more effectively.

The license of this software is Free Trial Software, the price is $59.95, you can free download and get a free trial.