充分必要条件- 维基百科，自由的百科全书 充分及必要條件（necessary and sufficient condition）簡稱「充要條件」。 在逻辑学中 ：. 当命题「若A則B」为真时，A称为B的 ...
充分條件和必要條件和充要條件有哪裡不同- Yahoo!奇摩知識+ 那麼我們就稱甲為乙的充分條件，乙為甲的必要條件。 按： .... 若P則Q」英文有時候也 寫成：If P then Q.
充分條件、必要條件與充要條件?(邏輯、集合)(頁1) - 高中數學討論區 ... 其實充分條件與必要條件需要看英文才行！ 充分條件：Sufficient Condition A is sufficient for B.
Choice Based Lettings - Welcome Social Renting in Edinburgh The City of Edinburgh Council and partner Housing Associations and Co-operatives let their homes through "EH Your Key to Choice". This is a choice based letting scheme, which means that you can choose the homes you would like t
Self-sufficiency - Wikipedia, the free encyclopedia Self-sufficiency (also called self-containment) is the state of not requiring any aid, support, or interaction, for survival; it is therefore a type of personal or collective autonomy. On a national scale, a totally self-sufficient economy that does not t
Thermite - Wikipedia, the free encyclopedia Thermite is a pyrotechnic composition of metal powder fuel and metal oxide. When ignited by heat, thermite undergoes an exothermic oxidation-reduction reaction. Most varieties are not explosive but can create brief bursts of high temperature in a small ar
Weight Management - ChooseMyPlate.gov Why is weight management important? In addition to helping you feel and look better, reaching a healthier body weight is good for your overall health and well being. If you are overweight or obese, you have a greater risk of developing many diseases inclu
Are there human races? « Why Evolution Is True UPDATE: I've received an email from a researcher who points out that two of my statements are either misleading or incorrect in view of more recent work. Here's the email and links: In your interesting blog article "Are there human races?", you write:"As
The Turing Test (Stanford Encyclopedia of Philosophy) Related Entries artificial intelligence | Chinese room argument | functionalism | logic: provability | Turing, Alan Acknowledgments We would like to acknowledge the help of the Editors of the Encyclopedia, Jose Hernandez-Orallo, and two anonymous referees
Chapter 2. Food security: concepts and measurement[21] Chapter 2. Food security: concepts and measurement [21] 2.1 Introduction This chapter looks at the origins of the concept of chronic food insecurity, the implications for measurement, and suggests the need for a complementary investigation into the implic
