The following diagram shows that 61 \(\not \Rightarrow\) 407 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 93 \( \not \Rightarrow \) 407 is not just a code 6 non-implication, but is also a code 4 non-implication.

407 This form is negation transferable
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14
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49
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30
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62
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121
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122
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218 \( \not \Rightarrow \) 327
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This form is transferable 61
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88
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93

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