necessary_and_sufficient kx21 "Necessary and Sufficient"... 040513 ... ??? Web Results 1 - 30 of about 4,340,000 for Necessary and Sufficient . (0.66 seconds) In logic ... Necessary and sufficient conditions. To say ... en.wikipedia.org/wiki/Necessary_and_sufficient 040513 ... kx21 Mathematically:- "A is necessary and sufficient for B" is as to "A if and only if B". 040513 ... kx21 e.g. A:- "Powell_says_Iraqis_could_like_occupation" B: "Saddam_says_Americans_could_like_occupation" 040514 ... . * iLink:- Parallel_sayings * 040514 ... kx21 * Acid_Test(s) * Promise and Performance... 040601 ...   two more things i've never been 040601 what's it to you? who go blather from