Problem 1. (A) Give an example of a partition of Z into three subsets such that...
Q2: Anethe following subsets defien a partition anZ? A-?x:x is an integer multiple of 49 Brx:x-1 is an integer multiple of 47 (= (x:x-2 is an integer moltiple of 4] If not, Describe a fourth set that will complet a partition of Z .
set Theory Question. Please include all steps Define a partition P of Z with infinitely many finite elements and infinitely many infinite elements. Prove that P is a partition of Z with the given property.
Let X be a finite set and F a family of subsets of X such that every element of X appears in at least one subset in F. We say that a subset C of F is a set cover for X if X =U SEC S (that is, the union of the sets in C is X). The cardinality of a set cover C is the number of elements in C. (Note that an element of C is a...
2. Let Wi-((a, b, c) : a-c-b), W2-((a, b, c) : ab>0), W3-((z, y,z) : r2+92+22£1} be subsets of R3 (a) Determine which of these subsets is a subspace of R3. Justify your answer. (b) For the subsets which are subspaces, find a basis and the dimension for each of them 2. Let Wi-((a, b, c) : a-c-b), W2-((a, b, c) : ab>0), W3-((z, y,z) : r2+92+22£1} be subsets of R3 (a) Determine which of these subsets is a subspace...
Problem 1. Let A be an infinite set such that |Al S INI. Prove A IN (Hint: First prove this for all infinite subsets B CN. Prove the general case by observing there is a bijection between A and some infinite subset of N.) Problem 1. Let A be an infinite set such that |Al S INI. Prove A IN (Hint: First prove this for all infinite subsets B CN. Prove the general case by observing there is a bijection...
Homework4: Problem 13 Previous Problem Problem List Next Problem 1 point) Solve the system using matrices (row operations) How many solutions are there to this system? A. None OB. Exactly 1 C. Exactly 2 D. Exactly 3 E. Infinitely many F. None of the above if there is one solution, give its coordinates in the answer spaces below. if there are infinite many solutions. enter z ın he answer blank or z, enter a om If there are no solutions,...
2 (1) For z E C, define exp z - n-0 (a) Prove that the infinite series converges absolutely for z E C (b) Prove that when z є R, the definition of exp z given above is consistent with the one given in problem (2a), assignment 16. Definition from Problem (2a): L(x(1/t)dt E(z) = L-1 (z) 2 (1) For z E C, define exp z - n-0 (a) Prove that the infinite series converges absolutely for z E C...
1. Give an example of a group, G, and a proper subgroup, H, where H has finite index in G and H has infinite order 2. Give an example of a group, G, and a proper subgroup, H, where H has infinite index in G and H has finite order. (Hint: you won't be able to find this with the groups that we work a lot with. Try looking in SO2(R)) 1. Give an example of a group, G, and...
(a) Recall that two sets have the same cardinality if there is a bijection between them and that Z is the set of all integers. Give an example of a bijection f: Z+Z which is different from the identity function. (b) For the following sets A prove that A has the same cardinality as the positive integers Z+ i. A= {r eZ+By Z r = y²} ii. A=Z 1.
Problem C The partition function for an ideal gas is given by integrating over all possible position and momen- tum configurations, weighted by a Boltzmann factor, for each particle (6 integrals per particle over z, v, z, pz, py, pz _ each running from-oo to +oo) and multiplying all N of these together (the factor of h is included to cancel the dimensions of dpdr; the factor of N! is included to divide out the multiplicity of particle-particle exchange) a)...