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Pseudo-valuations on pre-logics - MaRDI portal

Pseudo-valuations on pre-logics (Q2428614)

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Pseudo-valuations on pre-logics
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    Pseudo-valuations on pre-logics (English)
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    26 April 2012
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    A pseudo-valuation on a pre-logic \(X\) is a real-valued function \(\varphi\) such that \(\varphi(1)=0\) and \(\varphi(xz)\leq \varphi(x(yz))+\varphi(y)\) for all \(x,y,z\in X\). Properties of pseudo-valuations are investigated, and conditions for a real-valued function on a pre-logic to be a (continuous) pseudo-valuation are found.
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    pre-logic
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    ideal
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    deductive system
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    pseudo-valuation
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    pseudo-metric induced by pseudo-valuation
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