logict-0.7.1.0: A backtracking logic-programming monad.

logict-0.7.1.0: A backtracking logic-programming monad.

Adapted from the paper Backtracking, Interleaving, and Terminating Monad Transformers by Oleg Kiselyov, Chung-chieh Shan, Daniel P. Friedman, Amr Sabry.

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