Questions on Logic: Propositions, Conjunction, Disjunction, Implication answered by real tutors!

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 Logic: Propositions, Conjunction, Disjunction, Implication Solvers Lessons Answers archive Quiz In Depth

 Question 192745: There are several of us in algebra II having a difficult time with Truth Tables. Can someone help us please? The question is not from the text. Here it is: Construct a truth table for ~q-->(~q^p). Please Help! Click here to see answer by user_dude2008(1861)

 Question 192750: I am not the brightest crayon in the box when it comes to algebra, but this stuff is horrific!. Please help me. It is for homework... 6. (a) Translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If it is raining, then we will close the window. We closed the window. ---------------------------------------------------------------------- ∴ It is raining. It appears to be a valid statement to me. I just can not translate into symbolic form. Click here to see answer by user_dude2008(1861)
 Question 192750: I am not the brightest crayon in the box when it comes to algebra, but this stuff is horrific!. Please help me. It is for homework... 6. (a) Translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If it is raining, then we will close the window. We closed the window. ---------------------------------------------------------------------- ∴ It is raining. It appears to be a valid statement to me. I just can not translate into symbolic form. Click here to see answer by Mathtut(3670)

 Question 192743: We are using the Survey of Mathematics text but it is very confusing. I am not sure what the instructor is requiring. Please help! Fill the headings of the following truth tables using: p,q,~,-->,v and ^. (B) p q (b) T T F T F T F T T F F T (A) p q (a) T T F T F T F T F F F F (somehow when I cut and pasted they reversed position.) I got p^~q for (a) table. I am unable to figure out the (B) table. Am I correct for (A)? Click here to see answer by user_dude2008(1861)

 Question 192807: Write in symbolic form using p,q,r,~,->,v,^, where p,q,r represent the following statements. p: A dog is friendly q: A dog has a tail r: A dog licks faces a. If a dog has a tail, then it is not friendly b. If a dog is not friendly, then it does not lick faces. c. If a dog has a long tail, then either the dog is friendly or the dog lick faces. d. If a dog licks faces, then the dog is friendly and the dog has a long tail. For question a I got q->~p b: ~p->~r c: Click here to see answer by solver91311(16897)

 Question 193032: This ditzy blonde can't figure this stuff out. Please help me! It is not from the text book. 9.(3 pts) Determine the truth value of the following statement: Rembrandt was a famous painter and all prime numbers are odd. Click here to see answer by user_dude2008(1861)

 Question 193033: What is DeMorgan's Laws and how is it used to determine whether these two statements are equivalent. Here's the question from my instructor: Use DeMorgan's Laws to determine whether the two statements are equivalent: ~(p^q), ~p ^ ~q. Please, someone help me! Thank you... Click here to see answer by user_dude2008(1861)

 Question 193034: My sister referred me here for your help with this logic question I missed. Please help. 11.(4 pts) Determine which, if any, of the three statements are equivalent. a) If today is Monday, then tomorrow is Tuesday. b) If today is not Monday, then tomorrow is not Tuesday. c) If tomorrow is not Tuesday, then today is not Monday. Click here to see answer by Edwin McCravy(8909)

 Question 193126: We are studying chapter 3 in survey of math w/apps, but this question is not in the book. It is one assigned for homework. Since I have been ill I have not been able to study a lot. Can someone please help me by 3:00 am tonight? Here is the question: Determine whether the argument is valid or invalid. A tree has green leaves and the tree produces oxygen. This tree has green leaves. ----------------------------------------------------- ∴This tree produces oxygen. Click here to see answer by RAY100(1637)

 Question 193125: Here is another question I am not familiar with. It is for an assignment due Saturday, 3:00 am mountain time. Will someone help me. I have absolutely no clue to this question. Determine the truth value of the statement ~q <-> [~r v (p ^q)] when p is false, q is true, and r is true. Click here to see answer by user_dude2008(1861)

 Question 193028: I am the worst when it comes to truth tables. Please help me figure this one out. It is a homework question. 4.(4 pts) Construct a truth table for ~(p ^ q) Click here to see answer by Mathtut(3670)

 Question 199067: I work on this problem and I'm still having trouble I need your assistant please help. thank you 1.Write the converse, inverse, and contrapositive of the following conditional statement If the sun is shining, then it will not rain. Click here to see answer by jim_thompson5910(28598)

 Question 199065: Someone please help me with is problem . 1.Let p, q, and r be the following statements: p: Mary is on the bus. q: April is in the car. r: Stan is at the zoo. Translate the following statement into English: (p v ~ r) -> ~q Click here to see answer by jim_thompson5910(28598)

 Question 199138: x=-2/3y+1 solve for Y find the x-intercept, y intercept and slope Click here to see answer by rfer(12670)
 Question 199138: x=-2/3y+1 solve for Y find the x-intercept, y intercept and slope Click here to see answer by MathTherapy(1425)

 Question 201262: TWO PIPES FILL UP A TANK IN 9 3/8 HRS(75/8) . IF TWO PIPE RUN SEPARATELY THE LARGER DIA TAKES 10HRS LESS THAN THE SMALLER DIA PIPE TO FILL THE TANK INDIVIDUALLY . fIND THE NO OF HRS TAKE INDIVIDUAL TO FILL THE TANK ... Click here to see answer by stanbon(57387)

 Question 201378: I have been mulling over this problem for quite some time, and I think I have it right but I just need someone to look at it and confirm for me. Here is the statement that I am presented with: "If Verizon Wireless must remove installed equipment from a vehicle or fixed location in order to return it, then you will be charged a service fee." My assignment requires me to put this in symbolic form and then create a truth table for it. Here is what I got. p: Verizon Wireless must remove installed equipment from a vehicle q: Verizon Wireless must remove installed equipment from a fixed location r: You will be charged a service fee In symbolic form: (p v q) --> r and the truth table (in a weird format because of the text box, sorry): p: T T T T F F F F q: T T F F T T F F r: T F T F T F T F (p v q): T T T T T T F F (p v q) -> r: T F T F T F T F Any insight you can provide is much appreciated. Thank you in advance. Click here to see answer by jim_thompson5910(28598)

 Question 202733: Rewrite ~ (p  ~q) using DeMorgan's laws Click here to see answer by jsmallt9(3296)

 Question 219061: What is an example for each of the laws of logic? Click here to see answer by stanbon(57387)

 Question 230059: (PvQ)&(PvR) = Pv(Q&R) cannot figure this out for the life of me Click here to see answer by solver91311(16897)

 Question 230567: help me slove this question . this is from california geomenrty book . 1.3.6.10.15 ...... what is the next pattern ? how did you slove it ? please help me thank you in advance Click here to see answer by likaaka(51)

 Question 232782: please help me slove this question . Construct a truth table for each compound statement. 1-q ∨ (p ∧ ∼q) 2- ∼q ∧ (∼ p ∨ ∼q) Click here to see answer by vleith(2825)

 Question 203549: please help ) Determine which, if any, of the three statements are equivalent. a) If today is Monday, then tomorrow is Tuesday. b) If today is not Monday, then tomorrow is not Tuesday. c) If tomorrow is not Tuesday, then today is not Monday Click here to see answer by College Student(505)

 Question 248506: Determine whether the argument is valid or invalid. All B is C. All C is A. All B is A. Click here to see answer by stanbon(57387)

 Question 253525: My brain is 54 years old and it is trying to understand discrete structures. My first hurdle is creating a truth table for ~(p^q) v (pvq). Maybe I should withdraw from my class??? :-) I appreciate any assistance. Click here to see answer by solver91311(16897)
 Question 253525: My brain is 54 years old and it is trying to understand discrete structures. My first hurdle is creating a truth table for ~(p^q) v (pvq). Maybe I should withdraw from my class??? :-) I appreciate any assistance. Click here to see answer by Edwin McCravy(8909)

 Question 259684: If the average of s and t is 25, and t is equal to the average of w and x, what is the value of 2s in terms of w and x? (A) 25 + w + x (B) 25 - w - x (C) 50 - w - x (D) 50- 2w - 2x (E) 100 - 2w - 2x Click here to see answer by stanbon(57387)
 Question 259684: If the average of s and t is 25, and t is equal to the average of w and x, what is the value of 2s in terms of w and x? (A) 25 + w + x (B) 25 - w - x (C) 50 - w - x (D) 50- 2w - 2x (E) 100 - 2w - 2x Click here to see answer by Fombitz(13828)
 Question 259684: If the average of s and t is 25, and t is equal to the average of w and x, what is the value of 2s in terms of w and x? (A) 25 + w + x (B) 25 - w - x (C) 50 - w - x (D) 50- 2w - 2x (E) 100 - 2w - 2x Click here to see answer by studant(1)

 Question 260500: I have to construct a truth table for 2 different problems I am having a horrible time understanding how to do this. Problem 1: ~q V p Problem 2: (p ^ ~q) "if and only then" q The mark in the middle of p and ~q is suppose to be upside V, for "and". Please show me how to do these 2 problems, I have trying for a couple of hours and I am completely lost. Click here to see answer by drk(1908)

 Question 260704: Let p represent a true statement, while q and r represent false statements. Find the truth value of the compound statement. (p V ~q) or r, I had to type the word "or" since I don't know how to type in the upside down V. Is this statement true or false? Please show me how you got the answer so I can learn from it. Click here to see answer by drk(1908)

 Question 260706: Determine if the argument is valid or invalid. Give a reason to justity answer. If you eat well, you will be well. If you are well, you will be happy. If you eat well, you will be happy. choices are as follow: a) Valid by the law of detachment b) Valid by the law of contraposition c) Invalid by fallacy of the converse d) Invalid by fallacy of the inverse e) Valid by the law of syllogism f) Valid by disjunctive syllogism Click here to see answer by drk(1908)

 Question 260705: Write the statement in symbols using the p and q given below. Then construct a truth table for the symbolic statement. p=I eat too much q=I'll exercise I'll excercise if I don't eat too much. Click here to see answer by drk(1908)

 Question 260703: Let p represent the statement, "Jim plays football", and let q represent "Michael plays basketball". Convert the compound statements into symbols. It is not the case that Jim does not play football or Michael plays basketball. I am not getting this symbol stuff at all..Please help me. Click here to see answer by jim_thompson5910(28598)

 Question 261150: Determine which, if any, of the three statements are equivalent. I) If I am hungry, then I will not be able to concentrate at the meeting. II) Either I am not hungry or I will be able to concentrate at the meeting. III) If I am able to concentrate at the meeting, then I am not hungry. Choices: a) I,II, and III are equivalent b) I and II are equivalent c) I and III are equivalent d) None are equivalent I am lost here, I really need some help please. Click here to see answer by richwmiller(9143)

 Question 261271: Determine which, if any, of the three statements are equivalent. I) If the weather is not warm, then I will need a sweater. II) Either I will not need a sweater or the weather is not warm. III) If I will not need a sweater, then the weather is warm. a) I and II are equivalent b) I and III are equivalent c) II and III are equivalent d) I, II, and III are equivalent e) None are equivalent Click here to see answer by richwmiller(9143)

 Question 261270: Determine the truth value of the following statement: Leonhard Euler was a famous mathematician and the sum of any two odd numbers is an even number. Is this true or false? Click here to see answer by solver91311(16897)

 Question 261274: Given p is true, q is true, and r is false, find the truth value of the statement: ~ p (q v ~r). Please show step by step work, so I can do my other problems. Click here to see answer by drk(1908)
 Question 261274: Given p is true, q is true, and r is false, find the truth value of the statement: ~ p (q v ~r). Please show step by step work, so I can do my other problems. Click here to see answer by solver91311(16897)

 Question 261208: Write the compound statement in symbols. Let r= The food is good, p= I eat too much, q= I'll exercise If the food is good or if I eat too much, I'll exercise. a) r -> (p V q) b) (r V p) -> q c) (r -> p) ->q d) (r ^ p) -> q I can't seem to get the idea of using the symbols, I have tried and tried, please help me. Click here to see answer by jim_thompson5910(28598)

 Question 261282: I made a mistake in posting my original problem sorry..here is the correct one Given p is true, q is true, and r is false. find the truth value of the statement: ~p -> (q v ~ r) Show step by step work so I can use as example for other problems... Thanks in advance soooo much.. Click here to see answer by jim_thompson5910(28598)

 Question 261276: Fill in the heading of the following truth table using any of p, q, ~, ->, <->, V, and ^. q q fill in here T T F T F T F T T F F F Click here to see answer by jim_thompson5910(28598)

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