There are denumerably many ternary intuitionistic Sheffer functions (Q1118587)
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scientific article; zbMATH DE number 4095454
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | There are denumerably many ternary intuitionistic Sheffer functions |
scientific article; zbMATH DE number 4095454 |
Statements
There are denumerably many ternary intuitionistic Sheffer functions (English)
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1988
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Thanks to A. V. Kuznetsov, we know that there is no binary Sheffer function for \(\{\) \(\rightharpoonup,\vee,\wedge,\neg \}\) in the intuitionistic propositional calculus. As follows from the result described in the title of the paper, the arity of a function is a key point of this problem.
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Sheffer function
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intuitionistic propositional calculus
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0.8585744500160217
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0.7939521074295044
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0.7820085287094116
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0.7529789209365845
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