Guiding Inferences in Connection Tableau by Recurrent Neural Networks

Code

• github.com/BartoszPiotrowski/guiding-connection-tableau-by-RNNs
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Abstract

We present a dataset and experiments on applying recurrent neural networks (RNNs) for guiding clause selection in the connection tableau proof calculus. The RNN encodes a sequence of literals from the current branch of the partial proof tree to a hidden vector state; using it, the system selects a clause for extending the proof tree. The training data and learning setup are described, and the results are discussed and compared with state of the art using gradient boosted trees. Additionally, we perform a conjecturing experiment in which the RNN does not just select an existing clause, but completely constructs the next tableau goal.

Tasks

Reproductions