Today I'd like to share a simple and surprisingly useful algorithm for making logical inferences about games using propositional networks.
I developed this as part of the implementation for a more specific feature (one of the applications listed below). Although it was developed in the context of a larger feature, I wrote the code for this step to stand alone, and it has proved useful in quickly writing other features that involve understanding games more deeply.
The question that it answers is simple: given a set of components that we know to be true or false in a propnet, which other components are also guaranteed to be true or false? I call this implication deduction.