mathematical reasoning if and only if

... chỉ điều kiện. Ex: If I were to ask him nicely, he would help 4- WISH : a- Ước ở hiện tại: S + Wish + S + V.ed + (If only) were could + V Ex: I wish I were on the beach now. If only I were on ... wet if you (wear) a raincoat. 15- If they (know) your address, they would visit you 16- If it rains tomorrow, we (not go) on a picnic. 17- She would pass the exam if she (study) harder. 18- If ... would Lan do if she ………… the Miss world. a. would be b. were c. will be d. is. 24- If I were in your place, I …… ….a trip to England. a. will make b. had made c. made. d. would make. 25- If I …………...

Ngày tải lên: 29/09/2013, 01:10

... huống như vậy, bạn dùng cấu trúc if+ thì quá khứ (if I knew /if you were /if we didn’t…) nhưng nghĩa của câu là hiện tại không phải quá khứ. Tom would read more if he had more time. (but he doesn’t ... be able to go out) If I were you, I wouldn’t buy that coat hoặc If I was you… Nếu tôi là anh tôi sẽ không mua cái áo khoác đó. I’d go out if it weren’t raining hoặc if it wasn’t raining… ... dùng would ở mệnh đề if: I’d be very frightened if somebody pointed a gun at me. (không nói if somebody would point”) Tôi sẽ rất sợ nếu có ai đó chĩa súng vào tôi. If I didn’t go to their...

Ngày tải lên: 27/10/2013, 22:15

... said to be unbiased if and only if P(θ  ∈ C(X)) ≤ 1−α for any P and all θ  = θ. Unbiased estimator: Let X be a sample from a population P and θ ∈R k be a function of P . If an estimator T (X)ofθ ... Θ  -UMAU if and only if C(X) is unbiased and for any other unbiased confidence set C 1 (X) with significance level 1−α, P  θ  ∈ C(X)  ≤ P  θ  ∈ C 1 (X)  for all θ  ∈ Θ  . UMP (uniformly ... location parameter à and scale parameter if and only if f à, (x)= 1 f xà ,wheref is a known Lebesgue density. Location-scale invariant estimator. Let (X 1 , , X n ) be a random sam- ple from...

Ngày tải lên: 14/02/2014, 09:20

... b. Let E ∈ AC and F ∈ AB such that ∠AEF = ∠ABC and ∠AF E = ∠ACB. Denote by P ∈ BC and Q ∈ BC such that EP ⊥ BC and F Q ⊥ BC. Determine EP + EF + P Q? Q10. Let a, b, c ∈ [1, 3] and satisfy the ... What is AC if AB = 16cm? Q8. In ∆ABC, PQ//BC where P and Q are points on AB and AC respectively. The lines PC and QB intersect at G. It is also given EF//BC, where G ∈ EF , E ∈ AB and F ∈ AC ... c and a 2 + b 2 + c 2 is a four digit number with all digits equal. Q8. Consider a convex quadrilateral ABCD. Let O be the intersection of AC and BD; M, N be the centroid of AOB and COD and...

Ngày tải lên: 07/03/2014, 19:20

... Just and Only Ví dụ: Nếu nói “He was just here”, có nghĩa là nói “Anh ta vừa mới vừa ở đây vài phút trước thôi”/ "Anh ta vừa mới ở đây mà". Cơ bản là mỗi khi sử dụng only , ... cả. Nó làm cho câu nói của chúng ta nghe có vẻ lịch sự và nhẹ nhàng hơn. Câu thứ hai dùng only có nghĩa là tôi muốn cám ơn nhưng lại không muốn nói gì nữa sau đó. Nhiều trường hợp, ... lệnh hơn nhỉ?] Có những trường hợp chúng ta có thể sử dụng “just” nhưng không thể thay thế bằng only . ...

Ngày tải lên: 19/03/2014, 22:20

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Ngày tải lên: 10/10/2013, 03:11

... càng: more and more long adj/adv less and less Eg: My lessons get more and more difficult less and less The storm became more and more violent. The story gets more and more interesting. Life is ... European athelete. Sau Only + a time expression: Eg 12 : Only after, only later, only once, only then, only when Eg 13 : I didn't realize who he was until later. → Only later did I realize ... I was in Italy. * Sau Only + các cụm giới từ khác only by , only in , only with , only at Eg 17 : - Science can serve the interest of the people only in our country. → Only in our country can...

Ngày tải lên: 28/10/2013, 02:15

... thắng được Jack  When I do/When I have done. When and If & Can, could and be able to Unit 25. When I do/When I have done. When and If A Xét các ví dụ sau: A: What time will you phone ... đồng thời). Sau if chúng ta thường dùng thì present simple (if I do /if I see…) để diễn tả sự việc xảy ra trong tương lai: It’s raining hard. We’ll get wet if we go out. (not if we go’) Trời ... trễ. If they don’t come soon, I’m not going to wait (not ‘when they don’t come’) Nếu họ không đến sớm, tôi sẽ không chờ đâu.     Can, could and be able to Unit 26. Can, could and be...

Ngày tải lên: 19/01/2014, 17:20

... you wouldn’t speak so loudly II. If only: giá như, giá mà If only (= I wish) S + V: chia ra 3 trường hợp như trên EX: I feel sorry for those hungry children. If only there were peace in the world BÀI ... next month. 5. I wish I (can take) the trip to Hanoi with her next summer. 6. We wish we (understand) all the teacher’s explanation yesterday. 7. He missed an exciting football match on TV last...

Ngày tải lên: 25/01/2014, 09:20

... specified in our notification to the Information Commissioner, including the assessment and collection of tax and duties, the payment of benefits and the prevention and detection of crime, and may ... number and ã a daytime phone number. Independent advice You can get help and free independent advice from a number of different organisations, for example: Citizens Advice: ã for England, Wales and ... we've asked you to make, if you are having difficulty making the payments. Our leaflet What happens if we’ve paid you too much tax credits? (COP26) tells you more about this and is available from...

Ngày tải lên: 06/03/2014, 04:21

... eat only special foods, never have dessert, gulp handfuls of vitamin pills and supplements, and so on— fail far more often than people who take a more balanced and flexible approach. The only ... Island: Pam, Dick, and Maria; and to their wonderful second families. To all our children and grandchildren: Donna, Dan, Kristin, Brad, Greg, Jen, March, Step, Drew, Emma, Claire, Cecelia, and ... North American landscape and lifestyle. It fits our schedule, it fits our budget, and we love the taste. So what’s the solution? The only realistic answer to our weight woes is for you and people like...

Ngày tải lên: 06/03/2014, 05:20

... about Measuring and Managing Project Quality? Have patience, we are getting close. See if you can hold on until the end of this page, and here is why: We only solve symptoms if the symptoms ... lower, or if it is Scope that is lower, asserting, that if you can still have a wonderful time, it is just reduced Scope. The reaction is usually one of, If I could have had three weeks, and ... services and presents workshops of great interest to Executives, managers, project managers and leaders, technical staff, and individual contributors. His Project Management tools and methods...

Ngày tải lên: 07/03/2014, 00:20

... its definition of livestock and so fails to count GHGs from their life cycle and supply chain. It also omits GHG emissions from portions of the construction and operation of marine and land-based industries ... in landfills, incinerators, and waterways. ã Production, distribution, and disposal of byproducts, such as leather, feathers, skin, and fur, and their packaging. ã Production, distribution, and ... alternatives are analogs to livestock products such as soy- and seitan (wheat gluten) beef, chicken, and pork; and soy- and rice milk, cheese, and ice cream. Sales in the United States alone of soy...

Ngày tải lên: 08/03/2014, 09:20