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by sold 4139 days ago
I see, thanks.
1 comments
smorrow 4139 days ago
"The C Companion" gives logical identities like

    (A && B) || (A && !B) == A,
but what he means by A on the RHS, I think, is that you must take into account the fact that A_LHS might be zero. You can't really write this identity and give a constant on the right, so he wrote the next best thing.

Well, the real next best thing would be !(!A).

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