From: Christian L. (n95lundc@hotmail.com)
Date: Wed Jun 13 2001 - 08:33:28 MDT
Brian Phillips wrote:
>IF X THEN Y.
>also means..
>IF NOT (yet) X THEN NOT Y.
Not at all. The following statement is true however:
IF X THEN Y
also means:
IF NOT Y THEN NOT X
Truth value table:
X Y X=>Y (!Y)=>(!X) (!X)=>(!Y)
1 0 0 0 1
1 1 1 1 1
0 0 1 1 1
0 1 1 1 0
/Christian
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