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Soundness, Completeness, and Realization

Axiomatic soundness is quite straightforward. If k > 0 and m > 0 soundness is just an extension of the argument for the soundness for JT4.2, which was presented in Section 4.3.6.

We omit the details here. The other three cases of Definition 8.11 are simpler and are also omitted.

Figure 8.2 Illustration for Theorem 8.14

8.7

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Source: Artemov S., Fitting M.. Justification Logic: Reasoning with Reasons. Cambridge: Cambridge University Press,2019. — 271 p.. 2019

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