functionally complete가 아닌 경우

5가지 중 하나에 해당하는 경우 functionally complete하지 않습니다.

• monotonic : changing the truth value of any connected variable from false to true never makes the return value change from true to false;
• self-dual : reversing the truth value of the connected variables revers the truth value of the return value;
• affine : each connected variable either always or never affects the truth value of the return value;
• truth-preserving : when all variables are true, the return value is also true;
• falsity-preserving: when all variables are false, the return value is also false.

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