The following diagram shows that 31 \(\not \Rightarrow\) 292 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 209 \( \not \Rightarrow \) 292 is not just a code 6 non-implication, but is also a code 4 non-implication.

292 This form is negation transferable
\(\Downarrow\)
90
\(\Downarrow\)
23 \( \not \Rightarrow \) 118
\( \Downarrow \)
27
\( \Downarrow \)
This form is transferable 31
\( \Downarrow \)
209

Back