What is your answer?


"If Socrates was wise, doing evil for evil is not wise; if doing evil for evil is not wise, then Dirty Harry is not wise; therefore if Socrates was wise, Dirty Harry is not wise." is an example of:

    { 1 } - an invalid inference.
    { 2 } - modus ponens.
    { 3 } - hypothetical syllogism.
    { 4 } - modus tollens.
    { 5 } - disjunctive syllogism.

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Directions: Click on a number from 1 to 5.
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























1 is wrong. Please try again.


"If Socrates was wise, doing evil for evil is not wise; if doing evil for evil is not wise, then Dirty Harry is not wise; therefore if Socrates was wise, Dirty Harry is not wise." is an example of:

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2 is wrong. Please try again.


"If Socrates was wise, doing evil for evil is not wise; if doing evil for evil is not wise, then Dirty Harry is not wise; therefore if Socrates was wise, Dirty Harry is not wise." is an example of:

    { 1 } - an invalid inference.
    { 2 } - modus ponens.
    { 3 } - hypothetical syllogism.
    { 4 } - modus tollens.
    { 5 } - disjunctive syllogism.

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3 is correct!


"If Socrates was wise, doing evil for evil is not wise; if doing evil for evil is not wise, then Dirty Harry is not wise; therefore if Socrates was wise, Dirty Harry is not wise." is an example of:

    { 1 } - an invalid inference.
    { 2 } - modus ponens.
    { 3 } - hypothetical syllogism.
    { 4 } - modus tollens.
    { 5 } - disjunctive syllogism.

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Before continuing, you might try some wrong answers.
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























4 is wrong. Please try again.


"If Socrates was wise, doing evil for evil is not wise; if doing evil for evil is not wise, then Dirty Harry is not wise; therefore if Socrates was wise, Dirty Harry is not wise." is an example of:

    { 1 } - an invalid inference.
    { 2 } - modus ponens.
    { 3 } - hypothetical syllogism.
    { 4 } - modus tollens.
    { 5 } - disjunctive syllogism.

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5 is wrong. Please try again.


"If Socrates was wise, doing evil for evil is not wise; if doing evil for evil is not wise, then Dirty Harry is not wise; therefore if Socrates was wise, Dirty Harry is not wise." is an example of:

    { 1 } - an invalid inference.
    { 2 } - modus ponens.
    { 3 } - hypothetical syllogism.
    { 4 } - modus tollens.
    { 5 } - disjunctive syllogism.

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the end