post other question separately according to HomeworkLib i am supposed to do only 1 question..
Consider the following two propositions: Problem 2: P (AV B)C Which of the following best describes...
Let A and B be two arbitrary sets. Which one of the following propositions may not be true? a. AE P(A) What condition(s) are required to ensure that all propositions (a, b, c and d) in Problem 6 are true?
(1) Are the following propositions? (e) The sun is shining. (b) It rained in Austin, TX, on October 30, 1999. (c) Come to class! (d) Is it raining? (2) Write each sentence in symbols using P- It is hot. and Q- It is sunny (a) It is sunny and hot. (b) It is not hot but it is sunny. (c) It is neither hot nor sunny (3) If P - Today it is raining, and Q-Today it is snowing. (a)...
Consider the world in which there are only four propositions, A, B, C and D. How many models are there for the following sentences? You must explain what a model is, and justify your answer. a.) A & B & C & D b.) A V B V C c.) A & C
Which of the following equations best describes the relationship between vectors A, B, and C? I am not all the way sure how to solve this. Can you please also explain why you picked the answer you did at the end. Thanks! Part II Three vectors A, B, and C are shown below. Question 7 which of the following equation best describes the relationship between vectors A, B, and C? OA BC B=A+C No equation can be written to relate...
How do you show the following propositions are logically equivalent? (a) [(p → q) → r] ⊕ (p ∧ q ∧ r) and (p ∨ r) ⊕ (p ∧ q) (b) ¬∃x {P(x) → ∃y [Q(x, y) ⊕ R(x, y)] } and (∀x P(x)) ∧ [∀x ∀y(Q(x, y) ↔ R(x, y))] (c) Does [(p → q) ∧ (q → r)] → r implies (p → r) → r?
please explain why! thank you so much 27. Which term best describes the structural relationship between the pair of molecules below? НО ОН b. constitutional isomers identical enantiomers d. diastereomers e. not isomeric 28. Which term best describes the structural relationship between the pair of molecules below? .. Br a. not isomeric be constitutional isomers Ma enantiomers d. e. identical diastereomers
Which of the following best describes Theta a. Delta C / Delta V b. Delta C / Delta T c. Delta T / Delta S d. Delta T / Delta C e. None of the above Please explain your choice
please explain how Z-{0} specifically is the answer. Consider the following propositions over the integers N. • p:n is a divisor of 12 • q: n is even What are the truth sets of a)p b) p 1 a c) p +9 For finite sets you can list the elements, but for infinite sets (if there are any) use set builder notation. Be sure to show which answer is which. (©) b q: The truth set is truth set is...
. Which of the following best describes Rho a, Delta C / Delta V b. Delta C / Delta R c. Delta T / Delta S d. Delta T / Delta R e. None of the above PLEASE EXPLAIN YOUR CHOICE
2. Suppose that some agent whose degrees of belief are coherent ascribes subiective probabilities to propositions P and Q as follows: Use the laws of probability to compute each of the following b) Pr(PvQ) e Pr (PQ) d) Pr(Q P) f) Pr(- P Q) IMPORTANT: You may assume that none of x, y, and z has a value of either 0 or 1, but do not assume that P and Q are probabilistically independent. 2. Suppose that some agent whose...