The following diagram shows that 43 \(\not \Rightarrow\) 258 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 339 \( \not \Rightarrow \) 258 is not just a code 6 non-implication, but is also a code 4 non-implication.
| 258 | This form is negation transferable | |||
| \(\Downarrow\) | ||||
| 255 | ||||
| \(\Downarrow\) | ||||
| 260 | ||||
| \(\Downarrow\) | ||||
| 345 | \( \not \Rightarrow \) | 40 | ||
| \( \Downarrow \) | ||||
| This form is transferable | 43 | |||
| \( \Downarrow \) | ||||
| 339 |