pleases show all steps thankyou and write clearly Let a and b be rational numbers, and...
Questions: 1. Let P be the statement: "For all sets A, B and C. if AUB CAUC then B - ACC." (a) Is P true? Prove your answer. (b) Write out the converse of P. Is the converse of P true? Prove your answer. (c) Write out the contrapositive of P. Is the contrapositive of true? Explain.
a. Define what it means for two logical statements to be equivalent b. If P and Q are two statements, show that the statement ( P) л (PvQ) is equivalent to the statement Q^ P c. Write the converse and the contrapositive of the statement "If you earn an A in Math 52, then you understand modular arithmetic and you understand equivalence relations." Which of these d. Write the negation of the following statement in a way that changes the...
ntifiers , Counterexamples, Disproof (#9, 15 pts) #9. For each statement, state whether the statement is true or false. If false, explain; provide a counterexample as appropriate or a careful explanation. (If true, no explanation expected) (a) n in N, n+23 ≥n3+8. (b) x in R, x+23 ≥x3+8. (c) n in N, 4n + 1 is prime. (d) x, y in R, if |x| < |y|, then x2 < xy. (e) m in N such that n in N, m...
#7. TRUE/FALSE. Determine the truth value of each sentence (no explanation required). ________(a) k in Z k2 + 9 = 0. ________(b) m, n in N, 5m 2n is in N. ________(c) x in R, if |x − 2| < 3, then |x| < 5. #8. For each statement, (i) write the statement in logical form with appropriate variables and quantifiers, (ii) write the negation in logical form, and (iii) write the negation in a clearly worded unambiguous English sentence....
2. (a) Consider the statement ducks quack If all chickens lay eggs then some Write down in words the (i) conversE (ii) contrapositive (b) Now consider the statement For every tree on the Barr Smith Lawns there is a leaf tree that did not fall off last autumn on that Write down (in words) the negation of this statement 2. (a) Consider the statement ducks quack If all chickens lay eggs then some Write down in words the (i) conversE...
1. a) What is the truth value of (pvo) (pAo) when both p and q are b) Show-on 9) and-pwg are logically equivalent. c) Write the converse and contrapositive of the statement "If it is sunny, then I will go swimming." 1. a) What is the truth value of (pvo) (pAo) when both p and q are b) Show-on 9) and-pwg are logically equivalent. c) Write the converse and contrapositive of the statement "If it is sunny, then I will...
Question 4 of the image Prove that, for all n 1 1 Arrange the following rational numbers in increasing order: (i) x, is a rational number 61/99, 3/5, 17/30, 601/999, 599/1001. g 0 2 Find positive integers r and s such that r/s is equal to the repeating decimal (ii) 2 x5/2. Find an expression for x - 5 involving x,-5, and hence explain (without formal proof) why x, tends to a limit which is not a rational number 0.30024....
Show all steps , write clear Let F be an infinite field. Show that for two polynomials f(X), 9(X) E we have that f(X) = g(X) if and only if f(t) = g(t) for all t e F. Is this still true if F is a finite field? (Consider the polynomials X and X2 on the field Z/2).
I'm lost on part b, please show all work/steps & write clearly please thanks!
b) Convert the following numbers. (Please show all steps; no marks will be awarded if no steps are shown) i) 0xAD9 into 3-base representation ii) 4518 into 2-base (binary) representation iii) 123.35 into octal representation (up to 3 octal points) iv) 14.358 into decimal representation