logic: update readme
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@ -10,3 +10,14 @@ mimicing a tiny subset of the [z3](https://github.com/Z3Prover/z3)
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library's interface. it exposes classes for high-level bitvectors and
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library's interface. it exposes classes for high-level bitvectors and
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[unary-encoded integers.](https://en.wikipedia.org/wiki/Unary_numeral_system)
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[unary-encoded integers.](https://en.wikipedia.org/wiki/Unary_numeral_system)
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(unary is sometimes more efficient to solve)
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(unary is sometimes more efficient to solve)
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`sugarcane4unary2.py` utilizes z0 to solve a (pretty arbitrary) problem
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relating to farming sugarcane in Minecraft. you will need to set
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the environment variable `SOLVER` to (the path of) an external SAT solver.
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[kissat](https://github.com/arminbiere/kissat) works well.
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`hex_problem.py` creates a hexagon grid with some colored numbers in it.
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it doesn't really a serve a purpose.
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`yices_solution.py` parses a solution from a SAT solver,
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given the original yices-generated CNF.
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