The following diagram shows that 79 \(\not \Rightarrow\) 151 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 251 \( \not \Rightarrow \) 151 is not just a code 6 non-implication, but is also a code 4 non-implication.

151 This form is negation transferable
\(\Downarrow\)
122
\(\Downarrow\)
10
\(\Downarrow\)
80
\(\Downarrow\)
334 \( \not \Rightarrow \) 18
\( \Downarrow \)
67
\( \Downarrow \)
89
\( \Downarrow \)
90
\( \Downarrow \)
91
\( \Downarrow \)
This form is transferable 79
\( \Downarrow \)
251

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