The following diagram shows that 79 \(\not \Rightarrow\) 75 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 368 \( \not \Rightarrow \) 75 is not just a code 6 non-implication, but is also a code 4 non-implication.

75 This form is negation transferable
\(\Downarrow\)
404
\(\Downarrow\)
147 \( \not \Rightarrow \) 390
\( \Downarrow \)
91
\( \Downarrow \)
This form is transferable 79
\( \Downarrow \)
368

Back