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$\mathcal{NK}p$ (Definition)

$ \mathcal{NK}p$ is a natural deduction proof system for classical propositional logic. It is identical to NJp except that it replaces the rule $ \bot_i$ with the rule:

$\displaystyle \frac{\Gamma,\neg\alpha\Rightarrow\bot}{\Gamma\Rightarrow\alpha}$ where $\displaystyle \alpha$ is atomic$\displaystyle (\bot_c)$



"$\mathcal{NK}p$" is owned by Henry.
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Other names:  NKp
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Cross-references: NJp, propositional logic, natural deduction

This is version 1 of $\mathcal{NK}p$, born on 2002-10-03.
Object id is 3506, canonical name is MathcalNKp.
Accessed 2569 times total.

Classification:
AMS MSC: 03F03 (Mathematical logic and foundations :: Proof theory and constructive mathematics :: Proof theory, general)
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