The following diagram shows that 86-alpha \(\not \Rightarrow\) 87-alpha 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 86-alpha \( \not \Rightarrow \) 87-alpha is not just a code 6 non-implication, but is also a code 4 non-implication.
| 87-alpha | This form is negation transferable | |||
| \(\Downarrow\) | ||||
| 43 | ||||
| \(\Downarrow\) | ||||
| This form is transferable | 86-alpha | \( \not \Rightarrow \) | 106 |