The following diagram shows that 79 \(\not \Rightarrow\) 242 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 92 \( \not \Rightarrow \) 242 is not just a code 6 non-implication, but is also a code 4 non-implication.
242 | This form is negation transferable | |||
\(\Downarrow\) | ||||
91 | \( \not \Rightarrow \) | 241 | ||
\( \Downarrow \) | ||||
This form is transferable | 79 | |||
\( \Downarrow \) | ||||
92 |