In the following question, the domain of discourse is aset of male patients in a clinical study. Define thefollowing predicates:· P(x) : xwas given the placeboD(x) : x was given the medicationM(x) x had migrainesTranslate each of the following statements into a logicalexpression. Then negate the expression by adding anegation operation to the beginning of the expression.Apply De Morgan's law until each negation operationapplies directly to a predicate and then translate thelogical expression back into English.(a) Every patient was given the medication or the placebo orboth.(b) Every patient who took the placebo had migraines.(Hint: you will need to apply the conditionalidentity, p q = pv q.)(c) There is a patient who had migraines and was given theplacebo.

Px : x was given the placebo.Dx : x was given the medication.Mx : x had migraines.

Answered: In the following question, the domain…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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6. Fill in the blank with "all", "no", or "some" to make the following statements true. Note that "some" means one or more instances, but not all. • If your answer is "all", then give a brief explanation as to why. • If your answer is "no", then give an example and a brief explanation as to why. • If your answer is "some", then give two specific examples that illustrate why your answer it not "all" or "no". Be sure to explain your two examples. An example must include either a graph or a specific function. functions f, if f"(x) > 0 on the interval (a, b), then f'(x) < 0 on the interval (a) For (a, b). (b) For functions f, if f(x) is a polynomial, then it is differentiable for all a. (c) For f(x) at exactly one point. functions f, the tangent line to f(x) at x = a will intersect the graph of In mathematics, we consider a statement to be false if we can find any examples where the statement is not true. We refer to these examples as counterexamples. Note that a counterexample is an…
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2. Given premises: (1) All students in class either speak English or French. (2) Peter does not speak English. Prove the conclusion: There is some student in class who speaks French. You should first express the premises and the conclusion using logical expressions, using the following formulation: Let F(x) be “x speaks French." and E(z) be “z speaks English.", where the domain of a is students in class. Use rules of inference and follow the format for formal proofs discussed in class.
4. Given the predicates male(x), female(x), parent(x, y) (x is a parent of y), define the following predicates in terms of male, female, parent, or other pred- icates defined from these three predicates, in first-order logic: (a) father(x, y): x is the father of y. (b) mother(x, y): x is the mother of y. (c) ancesotor(x, y): x is an ancestor of y. (d) descendant(x, y): x is an descendant of y. (e) son(x, y): is a son of y. (f) daughter(x, y): x is a son of y. (g) sibling(x, y): x is a sibling of y.
2. Given a predicate logic sentence: E: if (for all x)p(x, f(y)) then p(a, f(y)) Show that & is valid.
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A student club holds a meeting. The domain is the set of all members of the club. M(a) denotes whether person x came to the meeting on time. O(x) refers to whether person x an officer of the club. D(x) indicates whether person a has paid his or her club dues. Match the English sentence with the corresponding logical proposition. Someone is not an officer. [ Choose ] All the officers came on time to the meeting. [ Choose ] Everyone was on time for the meeting. [ Choose ] Everyone paid their dues or came on time to the meeting. [ Choose ] At least one person paid their dues and came on time to the meeting. [ Choose ] There is an officer who did not come on time for the meeting. [ Choose ] • Previous
Mathematical Logic. First-order or predicate logic. Exercises on structures and models. 1. Prove that: ₁ \v₂Qv₂ [[c²]] iff ₁ €₂ Where Q is a two-argument predicate symbol and c is a constant symbol. Please be as clear as possible. Show and explain all the steps of the proof. Thank you very much.
5. Rewrite the following proposition as unambiguous English sentences. The relevant predicates are defined as follows: Again, let’s let P be a set of all people a. A(x) means “x is teaching the AI course" b. T(x) means “x is taking AI course" c. F(x) means “x has a twitter account." d. C(x) means “x likes to read." For example, the proposition 3x {P[A(x)^ C(x)]} could be translated as "There is a person who is teaching and likes to read" P [T(x) → (F(x) C(x))] ?
2. Mark each statement True or False. Justify each answer. (a) The symbol “3" means "there exist several." (b) If a variable is used in the antecedent of an implication without being quantified, then the universal quantifier is assumed to apply. (c) The order in which quantifiers are used affects the truth value.
- Let T(s) denote s is a technologies major, C(s) denote s is a computer science student and E(s) denote s is an engineering student. If the domain set of all students in CityU rewrite the following statements by using quantifiers, variables, and predicates T(s), C(s), and E(s).(i) Every computer science student is an engineering student.(ii) Some computer science students are also technology majors.
Let the domain be the set of all animals. Define the following predicates: A(x) : x can add. W(x) : x can waltz. • D(x) : x is a dog. . Сх) : х is a cat. Translate each of the following logical expressions into English. 1. Vx(D(x) → (A(x) V W(x)). 2. Эx(С(х) л -А(х) л W(x)) 3. -Эx(D(x) ЛA(х)) 4. Vx((D(x) V C(x)) → W(x))

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