This is a preview. Log in through your library . Abstract We conducted a computer-based psychological experiment in which a random mix of 40 tautologies and 40 non-tautologies were presented to the ...
This is a preview. Log in through your library . Abstract We prove the following surprising property of Heyting's intuitionistic propositional calculus, IpC. Consider the collection of formulas, φ, ...
Recent decades have witnessed remarkable progress in the study of Boolean satisfiability – the problem of determining whether a given propositional formula can be satisfied – and its natural extension ...
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