42 lines
1.1 KiB
Ruby
42 lines
1.1 KiB
Ruby
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class Prover9 < Formula
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desc "Automated theorem prover for first-order and equational logic"
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homepage "https://www.cs.unm.edu/~mccune/prover9/"
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url "https://www.cs.unm.edu/~mccune/prover9/download/LADR-2009-11A.tar.gz"
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version "2009-11A"
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sha256 "c32bed5807000c0b7161c276e50d9ca0af0cb248df2c1affb2f6fc02471b51d0"
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def install
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ENV.deparallelize
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system "make", "all"
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bin.install "bin/prover9", "bin/mace4"
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man1.install Dir["manpages/*.1"]
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end
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test do
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(testpath/"x2.in").write <<~EOS
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formulas(sos).
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e * x = x.
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x' * x = e.
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(x * y) * z = x * (y * z).
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x * x = e.
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end_of_list.
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formulas(goals).
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x * y = y * x.
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end_of_list.
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EOS
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(testpath/"group2.in").write <<~EOS
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assign(iterate_up_to, 12).
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set(verbose).
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formulas(theory).
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all x all y all z ((x * y) * z = x * (y * z)).
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exists e ((all x (e * x = x)) &
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(all x exists y (y * x = e))).
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exists a exists b (a * b != b * a).
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end_of_list.
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EOS
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system bin/"prover9", "-f", testpath/"x2.in"
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system bin/"mace4", "-f", testpath/"group2.in"
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end
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end
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