The following diagram shows that 185 \(\not \Rightarrow\) 76 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 185 \( \not \Rightarrow \) 76 is not just a code 6 non-implication, but is also a code 4 non-implication.
89 | \( \not \Rightarrow \) | 76 | This form is negation transferable | |
\( \Downarrow \) | ||||
90 | ||||
\( \Downarrow \) | ||||
51 | ||||
\( \Downarrow \) | ||||
77 | ||||
\( \Downarrow \) | ||||
This form is transferable | 185 |