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1. Consider the following proposition: For each integer a, if 3 divides aạ, then 3 divides...
3. [10 points] Consider the following theorem. Theorem. Assume that m is an integer that leaves...
3. [10 points] Consider the following theorem. Theorem. Assume that m is an integer that leaves a remainder of 6 upon division by 8. Assume furthermore that n is an integer that leaves a remainder of 3 upon division by 8. Then the product m n leaves a remainder of 2 upon division by 8. Consider the tollowing theorern. (a) Illustrate the theorem using an example. (b) Prove the theorem.
7. Consider the following proposition: For each integer a, a 2 (mod 8) if and only...
7. Consider the following proposition: For each integer a, a 2 (mod 8) if and only if (a2 + 4a): 4 (mod 8). (a) Write the proposition as the conjunction of two conditional statements (b) Determine if the two conditional statements in Part (a) are true or false. If a conditional statement is true, write a proof, and if it is false, provide a counterexample. (c) Is the given proposition true or false? Explain.
Q 5. Let F be a field and consider the polynomial ring l (a) State the Division Algorithm for polynomials in Plrl. b) Let a e F. Prove that -a divides f(x) in Fix] if and only if (a)- (c) Prove t...
Q 5. Let F be a field and consider the polynomial ring l (a) State the Division Algorithm for polynomials in Plrl. b) Let a e F. Prove that -a divides f(x) in Fix] if and only if (a)- (c) Prove that z-37 divides 42-1 in F43[z].
Q 5. Let F be a field and consider the polynomial ring l (a) State the Division Algorithm for polynomials in Plrl. b) Let a e F. Prove that -a divides f(x) in...
1. Consider the following claim. Claim: For two integers a and b, if a + b...
1. Consider the following claim. Claim: For two integers a and b, if a + b is odd then a is odd or b is odd. (a) If we consider the claim as the implication P =⇒ Q, which statement is P and which is Q? (b) Write the negations ¬P and ¬Q. (c) (1 point) Write the contrapositive of the claim. (d) Prove the contrapositive of the claim. 2. Use contraposition (proof by contrapositive )to prove the following claim....
e unction goj. 2. Give the truth table for the following compound proposition: 3. Solve the...
e unction goj. 2. Give the truth table for the following compound proposition: 3. Solve the followings: (a ) Prove that v3 is irrational, (b) Prove or disprove: the sum of five consecutive integers is divisible by 5. 4. Solve the followings: (a) State the Division Algorithm; (b) Let A- (0, 1,2,3, 4) and define the relation R on A by:
1 a). Give a counter example to the proposition: Every positive integer which ends in 31...
1 a). Give a counter example to the proposition: Every positive integer which ends in 31 is a prime. b). Give a proof by cases that min{s, t} + max{s, t} = s + t for any real numbers s and t. Hint: One of the cases you might use is s ≤ t or s < t. Depending on your choice, what would be the other case(s)? c). Give an indirect proof that if 2n 3 + 3n +...
2: Use mathematical induction to prove that for any odd integer n >= 1, 4 divides...
2: Use mathematical induction to prove that for any odd integer n >= 1, 4 divides 3n + 1 ====== Please type / write clearly. Thank you, and I will thumbs up!
Prove that a(a + 1)(2a + 1) is divisible by 6 for integer a using a...
Prove that a(a + 1)(2a + 1) is divisible by 6 for integer a using a quicker proof of this, based on the observation that 6 I m (6 divides m) if and only if 2 I m (2 divides m) and 3 I m (3 divides m). Please use modulo congruences.
5.Prove Proposition. Suppose that a, -a and bb and a>b. Then there is a positive integer M such t...
5.Prove Proposition. Suppose that a, -a and bb and a>b. Then there is a positive integer M such that ifp2 M and q 2 M then a >b Suggestions to get you started 0. It is easier to use a direct proof. Do not try to prove this one by contradiction. 0'. Draw the picture of the situation 1. Since a< b, what does the Hausdorff Lemma say? Draw the real line showing what the Hausdorff Lemma sets up for...
1. Let m be a nonnegative integer, and n a positive integer. Using the division algorithm...
1. Let m be a nonnegative integer, and n a positive integer. Using the division algorithm we can write m=qn+r, with 0 <r<n-1. As in class define (m,n) = {mc+ny: I,Y E Z} and S(..r) = {nu+ru: UV E Z}. Prove that (m,n) = S(n,r). (Remark: If we add to the definition of ged that gedan, 0) = god(0, n) = n, then this proves that ged(m, n) = ged(n,r). This result leads to a fast algorithm for computing ged(m,...
3. [10 points] Consider the following theorem. Theorem. Assume that m is an integer that leaves a remainder of 6 upon division by 8. Assume furthermore that n is an integer that leaves a remainder of 3 upon division by 8. Then the product m n leaves a remainder of 2 upon division by 8. Consider the tollowing theorern. (a) Illustrate the theorem using an example. (b) Prove the theorem.
7. Consider the following proposition: For each integer a, a 2 (mod 8) if and only if (a2 + 4a): 4 (mod 8). (a) Write the proposition as the conjunction of two conditional statements (b) Determine if the two conditional statements in Part (a) are true or false. If a conditional statement is true, write a proof, and if it is false, provide a counterexample. (c) Is the given proposition true or false? Explain.
Q 5. Let F be a field and consider the polynomial ring l (a) State the Division Algorithm for polynomials in Plrl. b) Let a e F. Prove that -a divides f(x) in Fix] if and only if (a)- (c) Prove that z-37 divides 42-1 in F43[z].
Q 5. Let F be a field and consider the polynomial ring l (a) State the Division Algorithm for polynomials in Plrl. b) Let a e F. Prove that -a divides f(x) in...
e unction goj. 2. Give the truth table for the following compound proposition: 3. Solve the followings: (a ) Prove that v3 is irrational, (b) Prove or disprove: the sum of five consecutive integers is divisible by 5. 4. Solve the followings: (a) State the Division Algorithm; (b) Let A- (0, 1,2,3, 4) and define the relation R on A by:
5.Prove Proposition. Suppose that a, -a and bb and a>b. Then there is a positive integer M such that ifp2 M and q 2 M then a >b Suggestions to get you started 0. It is easier to use a direct proof. Do not try to prove this one by contradiction. 0'. Draw the picture of the situation 1. Since a< b, what does the Hausdorff Lemma say? Draw the real line showing what the Hausdorff Lemma sets up for...
1. Let m be a nonnegative integer, and n a positive integer. Using the division algorithm we can write m=qn+r, with 0 <r<n-1. As in class define (m,n) = {mc+ny: I,Y E Z} and S(..r) = {nu+ru: UV E Z}. Prove that (m,n) = S(n,r). (Remark: If we add to the definition of ged that gedan, 0) = god(0, n) = n, then this proves that ged(m, n) = ged(n,r). This result leads to a fast algorithm for computing ged(m,...
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