Abstract
The notion of ‘obvious’ inference in predicate logic is discussed from the viewpoint of proof-checker applications in logic and mathematics education. A class of inferences in predicate logic is defined and it is proposed to identify it with the class of ‘obvious’ logical inferences. The definition is compared with other approaches. The algorithm for implementing the ‘obviousness’ decision procedure follows directly from the definition.
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Rudnicki, P. Obvious inferences. J Autom Reasoning 3, 383–393 (1987). https://doi.org/10.1007/BF00247436
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DOI: https://doi.org/10.1007/BF00247436