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PROJECT 6.2 In this project you will construct an increasing function that is discontinuous at each...
Suppose we tried to apply our real analysis definitions/methods to the set of rational numbers Q....
Suppose we tried to apply our real analysis definitions/methods
to the
set of rational numbers Q. In other words, in the definitions, we
only
consider rational numbers. E.g., [0, 1] now means [0, 1] ∩ Q, etc.
In
this setting:
(a) Find an open cover of [0, 1] that contains no finite subcover.
Hint:
Fix an irrational number α ∈ [0, 1] (as a subset of the reals
now!)
and for each (rational) q ∈ [0, 1] look for an...
Suppose we tried to apply our real analysis definitions/methods to the set of rational numbers Q....
Suppose we tried to apply our real analysis definitions/methods to the set of rational numbers Q. In other words, in the definitions, we only consider rational numbers. E.g., [0, 1] now means [0, 1] n Q, etc. In this setting: (a) Find an open cover of [0, 1] that contains no finite subcover. Hint: Fix an irrational number a € [0, 1] (as a subset of the reals now!) and for each (rational) qe [0, 1] look for an open...
With exercise 5, the first person did it wrongly. We are to define k to be...
With exercise 5, the first person did it wrongly. We
are to define k to be the largest integer such that root 2+k/n is
less than or equal to a. Please an expert should solve this
+ In Exercise 11 from Tutorial 6, we showed that if is an irrational number and y is a nonzero rational number, then ry is an irrational number. For example, 23 and are both irrational In Tutorial 5, we proved that between any two...
6) If E is any countable subset of real numbers prove that A*(E) = A*(E) = 0. 7) Show that the se...
6) If E is any countable subset of real numbers prove that A*(E) = A*(E) = 0. 7) Show that the set of all real numbers IR is measurable with >(IR) = . 8) Prove that If f : [a, b] IR is continuous [a; b]then it is measurable [a, b]. 9) Give an example of a function f : [O, 1] IR which is measurable on [O, 1] but not continuos on [O, 1]. 10) Find the Lebesgue integral...
Question 23.5 theorem We have proved Theorem 1 for the special case T, but the exact...
Question 23.5
theorem
We have proved Theorem 1 for the special case T, but the exact same construction works for every R if we replace T with r in each step of the argument. However, if x e {+0, -00}, the argument requires some modification Question 23.5: Explain how you would modify the above argument to obtain a bijection f:NN such that f(n)-0 Theorem 1: Let nbe a series of real numbers that is only conditionally convergent, but not absolutely...
1. Let f:R → R be the function defined as: 32 0 if x is rational...
1. Let f:R → R be the function defined as: 32 0 if x is rational if x is irrational Prove that lim -70 f(x) = 0. Prove that limc f(x) does not exist for every real number c + 0. 2. Let f:R + R be a continuous function such that f(0) = 0 and f(2) = 0. Prove that there exists a real number c such that f(c+1) = f(c). 3 Let f. (a,b) R be a function...
1) Show that if U is a non-empty open subset of the real numbers then m(U) > O. 2) Give an exa...
1) Show that if U is a non-empty open subset of the real numbers then m(U) > O. 2) Give an example of an unbounded open set with finite measure. Justify your answer, 3) If a is a single point on the number line show that m ( a ) = O. 4) Prove that if K is compact and U is open with K U then m(K) m(U). 5) show that the Cantor set C is compact and m(C)...
Name: Show all work for each problem: include relevant steps and explain all answers. Answers should...
Name: Show all work for each problem: include relevant steps and explain all answers. Answers should be clearly labeled. Problem 1 Prove that the v2 is irrational. Note that you must also prove the following corollary: If the square of a number is even, then the number itself is even. Use the definition below to assist you: Definition: We say that a real number r is rational if there exist integers p and such that , where is not equal...
For each n E N, define a function fn A - R. Suppose that each function fn is uniformly continuous. Moreover, suppose there is a function f : A R such that for all є 0, there exists a N, and for all x...
For each n E N, define a function fn A - R. Suppose that each function fn is uniformly continuous. Moreover, suppose there is a function f : A R such that for all є 0, there exists a N, and for all x E A, we have lÍs(x)-f(x)|く for all n > N. Then f is uniformly continuous. Note: We could say that the "sequence of functions" f "converges to the function" f. These are not defined terms for...
Integral: If you know all about it you should be easy to prove..... Let f:[a,b]→R and...
Integral: If you know all about it you should be easy to prove..... Let f:[a,b]→R and g:[a,b]→R be two bounded functions. Suppose f≤g on [a,b]. Use the information to prove thatL(f)≤L(g)andU(f)≤U(g). Information: g : [0, 1] —> R be defined by if x=0, g(x)=1; if x=m/n (m and n are positive integer with no common factor), g(x)=1/n; if x doesn't belong to rational number, g(x)=0 g is discontinuous at every rational number in[0,1]. g is Riemann integrable on [0,1] based...
Suppose we tried to apply our real analysis definitions/methods
to the
set of rational numbers Q. In other words, in the definitions, we
only
consider rational numbers. E.g., [0, 1] now means [0, 1] ∩ Q, etc.
In
this setting:
(a) Find an open cover of [0, 1] that contains no finite subcover.
Hint:
Fix an irrational number α ∈ [0, 1] (as a subset of the reals
now!)
and for each (rational) q ∈ [0, 1] look for an...
Suppose we tried to apply our real analysis definitions/methods to the set of rational numbers Q. In other words, in the definitions, we only consider rational numbers. E.g., [0, 1] now means [0, 1] n Q, etc. In this setting: (a) Find an open cover of [0, 1] that contains no finite subcover. Hint: Fix an irrational number a € [0, 1] (as a subset of the reals now!) and for each (rational) qe [0, 1] look for an open...
With exercise 5, the first person did it wrongly. We
are to define k to be the largest integer such that root 2+k/n is
less than or equal to a. Please an expert should solve this
+ In Exercise 11 from Tutorial 6, we showed that if is an irrational number and y is a nonzero rational number, then ry is an irrational number. For example, 23 and are both irrational In Tutorial 5, we proved that between any two...
Question 23.5
theorem
We have proved Theorem 1 for the special case T, but the exact same construction works for every R if we replace T with r in each step of the argument. However, if x e {+0, -00}, the argument requires some modification Question 23.5: Explain how you would modify the above argument to obtain a bijection f:NN such that f(n)-0 Theorem 1: Let nbe a series of real numbers that is only conditionally convergent, but not absolutely...
1. Let f:R → R be the function defined as: 32 0 if x is rational if x is irrational Prove that lim -70 f(x) = 0. Prove that limc f(x) does not exist for every real number c + 0. 2. Let f:R + R be a continuous function such that f(0) = 0 and f(2) = 0. Prove that there exists a real number c such that f(c+1) = f(c). 3 Let f. (a,b) R be a function...
Name: Show all work for each problem: include relevant steps and explain all answers. Answers should be clearly labeled. Problem 1 Prove that the v2 is irrational. Note that you must also prove the following corollary: If the square of a number is even, then the number itself is even. Use the definition below to assist you: Definition: We say that a real number r is rational if there exist integers p and such that , where is not equal...
For each n E N, define a function fn A - R. Suppose that each function fn is uniformly continuous. Moreover, suppose there is a function f : A R such that for all є 0, there exists a N, and for all x E A, we have lÍs(x)-f(x)|く for all n > N. Then f is uniformly continuous. Note: We could say that the "sequence of functions" f "converges to the function" f. These are not defined terms for...
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