Review of "Unsolvable classes of quantificational formulas" by Harry R. Lewis. Addison-Wesley 1979. and "The decision problem: solvable classes of quantificational formulas" by Burton Dreben and Warren D. Goldfarb. Addison-Wesley 1979.
Review of "Unsolvable classes of quantificational formulas" by Harry R. Lewis. Addison-Wesley 1979. and "The decision problem: solvable classes of quantificational formulas" by Burton Dreben and Warren D. Goldfarb. Addison-Wesley 1979.
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Review of "Unsolvable classes of quantificational formulas" by Harry R. Lewis. Addison-Wesley 1979. and "The decision problem: solvable classes of quantificational formulas" by Burton Dreben and Warren D. Goldfarb. Addison-Wesley 1979.
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