The following diagram shows that 165 \(\not \Rightarrow\) 87-alpha 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 330 \( \not \Rightarrow \) 87-alpha is not just a code 6 non-implication, but is also a code 4 non-implication.

87-alpha This form is negation transferable
\(\Downarrow\)
43
\(\Downarrow\)
133 \( \not \Rightarrow \) 106
\( \Downarrow \)
231
\( \Downarrow \)
This form is transferable 165
\( \Downarrow \)
330

Back