The following diagram shows that 61 \(\not \Rightarrow\) 302 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 269 \( \not \Rightarrow \) 302 is not just a code 6 non-implication, but is also a code 4 non-implication.

302 This form is negation transferable
\(\Downarrow\)
392
\(\Downarrow\)
393
\(\Downarrow\)
121
\(\Downarrow\)
122
\(\Downarrow\)
10
\(\Downarrow\)
218 \( \not \Rightarrow \) 358
\( \Downarrow \)
This form is transferable 61
\( \Downarrow \)
88
\( \Downarrow \)
268
\( \Downarrow \)
269

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