The following diagram shows that 52 \(\not \Rightarrow\) 201 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 280 \( \not \Rightarrow \) 201 is not just a code 6 non-implication, but is also a code 4 non-implication.

201 This form is negation transferable
\(\Downarrow\)
88
\(\Downarrow\)
67 \( \not \Rightarrow \) 80
\( \Downarrow \)
This form is transferable 52
\( \Downarrow \)
142
\( \Downarrow \)
280

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