Paraconsistent logic
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Three-valued logic
Checkbox
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Jan Łukasiewicz
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Philosophical logic
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Involution (mathematics)
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Signal
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Rule of inference
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Abstract interpretation
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Fuzzy logic
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Ternary signal
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Many-valued logic
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0
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William of Ockham
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SQL
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Relational model
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Principle of bivalence
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Propositional logic
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History of computing hardware
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