• Korean Journal of Logic
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• v.16 no.3
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• pp.381-406
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• 2013

This paper deals with the question whether the para-completeness theory of Kripkian style can avoid the revenge problem. According to the para-completeness theory, there are some sentences that are neither true nor false. And the liar sentence is the exemplar of such sentences. But the para-completeness theory has been criticised to give rise to the revenge problem, since Kripke suggested his theory. Maudlin argues that he can construct the para-completeness theory which avoids the problem by appealing to his foundationalist semantics. The aim of this paper shows that the para-completeness theory, including Maudlin's, cannot avoid the problem. Furthermore, it is argued that Maudlin's view is ad hoc suggestion just to avoid the problem.

• Journal of Korean Society of Water and Wastewater
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• v.12 no.1
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• pp.88-95
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• 1998

The Electron/Hole Pair is generated when the Activation Energy produces by Ultraviolet Ray illumination to the Semiconductor. And $OH^-$ ion produces by Water Photo-Cleavage reacts with Positive Hole. As a result, OH Radical acting as strong oxidant is generated and then Photocatalytic Oxidation Reaction occurs. The Photocatalytic Oxidation can oxidize the chlorophenol to Chloride and Carbon Dioxide easier, safer and shorter than conventional Water Treatment Process With the same degree of chlorination, the $Cl^-$ ion at para (C4) position is most easily replaced by the OH radical. And then, the blocking effect of $OH^-$ ion between the $Cl^-$ ions and $Cl^-$ ions at symmetrical location is easily replaced by the OH radical. For mono-, di-, tri-chlorophenols, there is no obvious difference in decomposition rate, decomposition efficiency and completeness of the decomposition reaction except for 2,3-dichloropheno, 2,4,5-, 2,3,4-trichlorophenol. The decomposition efficiency is higher than 75% and completeness of the decomposition reaction is higher than 70%. Therefore, continuous flow photocatalytic reactor is promising process to remove the chlorinated aromatic compounds which is more toxic than non-chlorinated aromatic compound.

• Korean Journal of Logic
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• v.17 no.2
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• pp.233-253
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• 2014

The Pinocchio paradox that Eldridge-Smith suggested is a version of the semantic paradox. But it is unique in the sense that this paradox does not contain a semantic predicate. Tarski's solution which appeals to the hierarchy of language and Kripke's para-completeness which accepts the third truth value cannot solve the Pinocchio paradox. This paper argues that Eldridge-Smith's trial to criticize semantical dialetheism is not successful and that the paradox implies the rule of the truth predicate is inconsistent. That is, the proper diagnosis to this paradox is that the Pinocchio principle should be considered to be potentially inconsistent, which suggests that semantic paradoxes such as the liar paradox arise because the rule of the truth-predicate is inconsistent. The Pinocchio paradox teaches us that consistent view of truth cannot be successful to solve the semantic paradoxes and that we should accept the inconsistent view of truth.