The following diagram shows that 87-alpha \(\not \Rightarrow\) 1 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 174-alpha \( \not \Rightarrow \) 1 is not just a code 6 non-implication, but is also a code 4 non-implication.
| 1 | This form is negation transferable | |||
| \(\Downarrow\) | ||||
| This form is transferable | 87-alpha | \( \not \Rightarrow \) | 192 | |
| \( \Downarrow \) | ||||
| 174-alpha |