Proof Search in Minimal Logic

@inproceedings{Schwichtenberg2004ProofSI,
  title={Proof Search in Minimal Logic},
  author={Helmut Schwichtenberg},
  booktitle={AISC},
  year={2004}
}
We describe a rather natural proof search algorithm for a certain fragment of higher order (simply typed) minimal logic. This fragment is determined by requiring that every higher order variable Y can only occur in a context \(Y \vec{x}\), where \(\vec{x}\) are distinct bound variables in the scope of the operator binding Y, and of opposite polarity. Note that for first order logic this restriction does not mean anything, since there are no higher order variables. However, when designing a… 

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