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Is there a graph system that can be used e.g. in legal and other contexts for drawing conclusions?

With a "graph system" (sorry if it is not the right word) I am referring to a set of agreed symbols. With "drawing conclusions" I mean using these graphs to help come to conclusion about various subjects.

I gave the legal context as an example as it is one where an argument would start from a premise and then use additional data to build up to some conclusion. So it should be possible to use the graphs to show the process from premise and data to conclusion.

This would be for a website (that I have been planning to build) where a community of users can draw conclusions together.

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  • do you mean a Decision tree? – Aprillion Dec 14 '14 at 13:39
  • Try searching for research or designs in 'diagrammatic reasoning'. – user1757436 May 15 '15 at 20:26
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I worked with a guy who was into argument diagramming, and I learned from him there were two main (and quite old) systems for visually graphing argument structures, one of which (wigmore) was designed for legal argument

Wigmore diagrams - http://www.arg.dundee.ac.uk/people/chris/publications/2006/comma2006-wig.pdf

Wigmore Diagram from Wikipedia article on Argument Map Toulmin diagrams - http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.122.9412&rep=rep1&type=pdf

Sorry there's no picture for this one but the uploader doesn't like gifs. It's basically text in boxes with an enforced graph structure.

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A Decision Tree is probably what you're looking for, which are used for various things including some types of machine learning.

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