Question 17What rule of inference is used here?"It is rainy and storming now. Therefore, it is raining now."A AdditionSimplificationc) ResolutionD Conjunction

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Answered: What rule of inference is used here?…

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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I.A. Determine the validity of the following arguments by using the rule of inference table by stating the name of the rule used. 7. If you find this difficult then you're stupid or you haven't done your assignment. You've done your assignment and you're not stupid therefore you won't find this difficult. Answer: B. Smoking is healthy. If smoking is not healthy, then cigarettes are prohibited by physicians. Therefore cigarettes are prohibited by physicians. Answer: 9. If it does not rain, then the street won't be wet. The street is wet Therefore, it rained. Answer: 10. If a triangle is equilateral, then it is equiangular. If it is an equilateral triangle, then it is isosceles. Therefore, if it is equiangular, then it is isosceles. Answer: 11. Pentium i7 is a computer processor. If Pentium i7 is a computer processor, then C++ is a programming language. Therefore, Pentium i7 is a computer processor. Answer: 12. If today is Friday, then tomorrow is Saturday. Today is not Saturday and…
All of the employees at the acmesoft company are either programmers or salespeople. The programmers are always tell the truth, the salespeople always lie. Threes Acmesoft employees - A, B, and C-were standing together in the hallway. A visitor passed by and asked A. "Are you a programmer or a salesperson?" A mumbled an answer that the visitor could not hear clearly. The visitor then asked B, "what did A say?" B replied. "A said that he is a salesperson."At this point, the third employee, C, said ,"Don't believe B; he is lying! What are B and C? 1/ B and C are both programmers 2/ B is a programmer and C is a salesperson 3/ B is a salesperson and C is a programmer 4/ B and C are both salesperson
22. Is this statement valid? If it rains, it pours. It did not pour, so it did not rain.
5. Suppose that we have the following premises: "If I run, then my ankle does not hurt." "If I am not injured, then I run." "My ankle hurts." Using inference rules, show that these premises lead to the following conclusion: "I am injured"
Construct a formal proof of validity using conditional method.
9. Tommy Flanagan was telling you what he ate yesterday afternoon. He tells you, “I had either popcom or raisins. Also, if I had cucumber sandwiches, then I had soda. But I didn't drink soda or tea." Of course you know that Tommy is the world's worst liar, and everything he says is false. What did Tommy eat? Justify your answer by writing all of Tommy's statements using sentence variables (P,Q.R,S,T), taking their negations, and using these to deduce what Tommy actually ate. [8]
Make the following proof by applying the rules of inference
What is the hypothesis in a conditional statement, "If I had wings, I could fly"?
2. What is type I error? C. Reject Ho if Ho is true as A. Fail to reject Ho if Ho is true B. Fail to reject Ho if Ho is false D. Reject Ho if Ho is false
If it is snowing heavily than school will be canceled. If school is cancel, the big test will not be given today, use the law of syllogism with a valid conclusion. If not possible, right not possible.
After an unusually dry autumn, a radio announcer is heard to say, "Watch out! We'll pay for these sunny days later on this winter." Explain what he's trying to say, and comment on the validity of his reasoning b) A batter who had failed to get a hit in seven consecutive times at bat then hits a game-winning home run. When talking to reporters afterward, he says he was very confident that last time at bat because he knew he was "due for a hit." Comment on his reasoning. ...
Which option below (a,b,c, or d) represents the small world that this inference being made is NOT valid.Inference= (∀x)(Fx->Gx) and Fa; therefore, (∀x)Gx.a) Individuals: a, b; Predicates: Gbb) Individuals: a, b; Predicates: Fa, Fb, Ga, Gbc) Individuals: a, b; Predicates: Fa, Ga, Fbd) Individuals: a, b; Predicates: Fa, Ga

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What rule of inference is used here? "It is rainy and storming now. Therefore, it is raining now."