m19 - 0 0 0 1 1 1 1 0 0 1 1 0 1 1 0 1 1 1 0 0 A B B A B 3)...

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Lecture C19 Response to 'Muddiest Part of the Lecture Cards' (9 respondents) 1) Is the an “and/or” or an “xor” ? represents an OR. 2) Say ¬ A ¬ B, does this mean A and B must be opposites, that is : 0 0 0 1 1 1 1 0 0 1 1 0 1 1 0 0 1 1 0 0 ¬ A ¬ B ¬ B ¬ A B ¬ No, it does not. There is a mistake in the truth table. ¬ A ¬ B has the value 1 when both A and B equals 0.
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Unformatted text preview: 0 0 0 1 1 1 1 0 0 1 1 0 1 1 0 1 1 1 0 0 A B B A B 3) Are these equivalent: x(N(x) R(x)) x( N(x) R(x)) ? No they are not. The first term can be rewritten as: x ( N(x) R(x)) And the second term can be rewritten as: x (N(x) R(x)) 4) No mud, cool stuff, etc. (4 students)...
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m19 - 0 0 0 1 1 1 1 0 0 1 1 0 1 1 0 1 1 1 0 0 A B B A B 3)...

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