Philosophy
The Logic of Questions and Erotetic Inference
Quick fact
Erotetic logic treats 'Does the Earth have a moon?' and 'Which planet is largest?' as having distinct logical forms, and it can prove that some questions are impossible to answer correctly relative to a given knowledge base.
Why this is interesting
We ask questions every day, but did you know that logic can govern their structure? What makes a question 'well-posed' and how do we infer from the very act of asking?