The following diagram shows that 130 \(\not \Rightarrow\) 398 is a code 6 non-implication, and the theory of transferability then shows that it is actually a code 4. It follows that the non-implication 130 \( \not \Rightarrow \) 398 is not just a code 6 non-implication, but is also a code 4 non-implication.

398 This form is negation transferable
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322
\(\Downarrow\)
324
\(\Downarrow\)
327
\(\Downarrow\)
250
\(\Downarrow\)
80
\(\Downarrow\)
67 \( \not \Rightarrow \) 18
\( \Downarrow \)
89
\( \Downarrow \)
90
\( \Downarrow \)
91
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This form is transferable 130

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