The following diagram shows that 132 \(\not \Rightarrow\) 61 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 73 \( \not \Rightarrow \) 61 is not just a code 6 non-implication, but is also a code 4 non-implication.
| 61 | This form is negation transferable | |||
| \(\Downarrow\) | ||||
| 45-n | ||||
| \(\Downarrow\) | ||||
| 64 | ||||
| \(\Downarrow\) | ||||
| 380 | \( \not \Rightarrow \) | 390 | ||
| \( \Downarrow \) | ||||
| This form is transferable | 132 | |||
| \( \Downarrow \) | ||||
| 73 |