The following diagram shows that 79 \(\not \Rightarrow\) 403 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 272 \( \not \Rightarrow \) 403 is not just a code 6 non-implication, but is also a code 4 non-implication.

403 This form is negation transferable
\(\Downarrow\)
324
\(\Downarrow\)
327
\(\Downarrow\)
250
\(\Downarrow\)
80
\(\Downarrow\)
67 \( \not \Rightarrow \) 18
\( \Downarrow \)
89
\( \Downarrow \)
90
\( \Downarrow \)
91
\( \Downarrow \)
This form is transferable 79
\( \Downarrow \)
272

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