How to prove 1+1=2 ?

MATH 110 Fall 2004-05 Concepts in (PDF) ... 2. 79. 5. Counting. Note that we used the following facts in the proof. ... 2. A. 3. Exercise 5.1. 1. Prove the other equalities ... www.math.ust.hk/~tonyee/math110/ notes110-ch5.pdf - 228k - 以html格式檢視 - 更多此站結果 Proof that 1 + 1 = 2 Can you prove that 1 + 1 = 2? ... c' = b, with c in N, and define a + b = (a + c)'. You also have to define 1 = 0', and 2 = 1'. Then the proof of the Theorem above is a little different: ... mathforum.org/library/drmath/view/ 51551.html - 更多此站結果 We assume that the set Z of integers are (PDF) ... Proof. For n = 1, n(n + 1) = 1 · (1 + 1) = 2 = x ... 2 , n 1. "Proof:" Suppose it is true for n, i.e. ... www.math.ust.hk/faculty/mabfchen/ Math132/MI.pdf
proof 1+1 =2 這是我在大學時的Classical Analysis的大考題。答案很簡單:若1是實數, 那1+1就不能是1 for 1 is R (real number), then 1 + 1 <> 1在實數的空間之內, 必有另一個數值可以解答 1+1 而不是1. 因為在實數的空間中,兩個相同數的並分類: 數學 時間：2006/05/04 數學問題(10分)(only1天)(數學高手一定要進) 係有條式可以proof到 1+1 = 2, =3, =4........分類: 其他 時間：2006/08/28 點樣用數學方法證實 1 + 1 = 2 這是我在外國網站找到的︰The proof starts from the Peano Postulates, which define the natural numbers N. N is the smallest set satisfying these postulates: P1. 1分類: 數學 時間：2006/04/03 為什麼1+1=2? Peano Postulateswhich define the natural numbers N. N is the smallest set satisfying these postulates:P1. 1 is in N.P2. If x is in N, then its "

吃了1粒糖，再吃1粒糖。共吃去2粒糖。