The following diagram shows that 79 \(\not \Rightarrow\) 82 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 169 \( \not \Rightarrow \) 82 is not just a code 6 non-implication, but is also a code 4 non-implication.
82 | This form is negation transferable | |||
\(\Downarrow\) | ||||
164 | \( \not \Rightarrow \) | 84 | ||
\( \Downarrow \) | ||||
91 | ||||
\( \Downarrow \) | ||||
This form is transferable | 79 | |||
\( \Downarrow \) | ||||
272 | ||||
\( \Downarrow \) | ||||
169 |