Logic

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Logic Questions and Answers

Correct the error in statement (3), if there is one. (1) If Janet finishes her homework, then she will watch TV. (2) If Janet watches TV, then she will eat pretzels. (3) If Janet ate pretzels, then she finished her homework.  

Provide a counterexample for the statement "if an animal has four legs, then it is a dog."

What is the difference between the processes of deductive and inductive reasoning?

Earth is to Mars as Australia is to?

Explain what advantages we obtain by studying logic in terms of improving our reasoning. Consider a debate over whether prayer should be allowed in public schools. Explain what logic can and cannot do. In other words, what kinds of questions and topics are not decided by logical analysis?

"Don’t read the New York Times; it's filled with liberal propaganda." What type of fallacy is the previous statement? Is it ad hominem (poisoning the well), straw man, false dilemma, misplacing burden of proof, begging the question, appeal to emotion, or irrelevant conclusion?

Analyze the following popularization of the Russell paradox: Every municipality of a certain country must have a mayor, and no 2 municipalities may have the same mayor.  Some mayors do not reside in the municipalities they govern.  A law is passed compelling nonresident mayors to reside by themselves in a certain special area A. There are so many nonresident mayors that A is proclaimed a municipality.  Where shall the mayor of A reside? (If the mayor resides in A, then ... .  If the mayor does not reside in A, then ... .)

What is a limitation of formal logic for everyday authors?

What is the difference between a fact and an inferences?

Within philosophy, what does the term "modal" mean, and how is it used?

the scope and limit of logic Logic can do a great deal in helping us understand our arguments. Explain what advantages we obtain by studying logic in terms of improving our reasoning. Consider a debate over whether prayer should be allowed in public schools. Explain what logic can and cannot do. In other words, what kinds of questions and topics are not decided by logical analysis?

Identify the hypothesis and conclusion of the statement "If you are not in school then you are at home."

Determine the type of reasoning used. (Inductive,Deductive or Invalid) 1. Cory knows that David is shorter than Jennifer.     Cory also knows he is taller than Jennifer.     Cory reasons he is taller than David. (I think this is Deductive) 2. Cory is told that when Jennifer gets her chores done, then she will usually go to the mall. He also knows that Jennifer usually gets her chores done by 5 p.m Cory reasons that Jennifer will usually go to the mall by 5pm. (I think this is inductive) 3. David plays video games if and only if he finishes his homework. David did not play video games on Wednesday. Therefore David did not finish his homework on Wednesday.    

What kinds of questions and topics are not decided by logical analysis?

Explain what advantages we obtain by studying logic in terms of improving our reasoning. 

Consider a debate over whether prayer should be allowed in public schools. Explain what logic can and cannot do in this debate.

Logic can do a great deal in helping us understand our arguments. Explain what advantages we obtain by studying logic in terms of improving our reasoning.

We all agree, I’m sure, that pain is a bad thing. (1) We are morally required to try to avoid causing pain to anyone or anything that can feel pain, unless there is a good over-riding reason not to cause pain, (2) since we are morally required to try to avoid bad things. (3) For example, a doctor may sometimes cause us pain as they try to heal us. (4) But, since they are trying to heal us, (5) they are not doing anything wrong. (6) Given all of that, it should be clear that we should not eat meat, (7) since killing animals for food causes them pain! What is the missing premise?

What is induction?

Describe what the 'fourth dimension' of Time, is or might be.

What aspect of the debate "prayer in school" may not be decided by logical analysis?

How does studying logic improve our reasoning ability?

What are some problems with this chain of reasoning? If the soul is immortal, then thinking doesn't depend on brain activity. Thinking does depend on brain activity. Therefore, the soul is immortal.

Are statements in the form "s/he said X" statements of fact or inferences?

How does human decision-making work, and where does critical thinking fit?

Explain the ethics of fallacious argumentation.

The word "induce" comes from a Latin word meaning "lead." Explain what leading has to do with inductive reasoning.

Major premise: If a country has a strong economy, the government will be popular. Minor premise: The government is not popular. Conclusion: Therefore, the country does not have a strong economy. Is this a valid argument? a) Yes. b) No.

Match the argument below with the logical fallacy : A. Post hoc, ergo propter; B. Slippery Slope; C. Red Herring; D. Bandwagon; E. Ad hominem. You got an A in physics when you bought a new car-the car caused your A.

What is wrong with the argument that since something has not been proven true, it must be false?

The earth is not flat if and only if it's possible to sail all the way around it. translate into symbolic form

Identify "common logical fallacies," and explain why you should avoid them when you write about literature.

Is this set of propositions in the form of enthymeme or syllogism? Those who study rhetoric speak eloquently.-- Major premise Susam studies rhetoric.-- Minor premise Susam speaks eloquently.-- Conclusion

Is the following set of propositions a syllogism or an enthymeme? Wise words stand the test of time. - Major premise (Lord Churchill's) words were wise. - Minor premise (Lord Churchill's ) words will stand the test of time.- Conclusion

Construct a deductive argument that is valid but not sound.

How can I write arguments in English in the forms of modus ponens and modus tollens?

How did the Greeks use deductive reasoning?

What is inductive argument? This is an inductive argument, but I need to make it stronger; I am not sure how.

What is a deductive argument?  

What is an inductive argument?