What is your answer?


The object of the science of logic is:

    { 1 } - paradoxes.
    { 2 } - attributes of subjects.
    { 3 } - the rules of connecting statements into arguments.
    { 4 } - truth or falsity of statements.
    { 5 } - contradictions.

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1 is wrong. Please try again.


The object of the science of logic is:

Paradoxes are statements that are not what they appear to be; they are either self-contradictory when they appear to be true (negative paradox), or true when they appear to be self-contradictory. See p.21.

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2 is wrong. Please try again.


The object of the science of logic is:

    { 1 } - paradoxes.
    { 2 } - attributes of subjects.
    { 3 } - the rules of connecting statements into arguments.
    { 4 } - truth or falsity of statements.
    { 5 } - contradictions.

"Attribute" here is synonymous with "characteristic," and "subject" refers to the being which has the characteristic. See p. 20.

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3 is correct!


The object of the science of logic is:

    { 1 } - paradoxes.
    { 2 } - attributes of subjects.
    { 3 } - the rules of connecting statements into arguments.
    { 4 } - truth or falsity of statements.
    { 5 } - contradictions.

An argument is a process of reasoning, or connecting one statement to another to reach a conclusion. See p. 25.

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4 is wrong. Please try again.


The object of the science of logic is:

    { 1 } - paradoxes.
    { 2 } - attributes of subjects.
    { 3 } - the rules of connecting statements into arguments.
    { 4 } - truth or falsity of statements.
    { 5 } - contradictions.

Logic is concerned with validity, the way statements are connected together to reach conclusions, not with the truth of the statements. Of course, a statement that violates the principle of non-contradiction must be false.

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5 is wrong. Please try again.


The object of the science of logic is:

    { 1 } - paradoxes.
    { 2 } - attributes of subjects.
    { 3 } - the rules of connecting statements into arguments.
    { 4 } - truth or falsity of statements.
    { 5 } - contradictions.

Close, but no cigar. The principle of non-contradiction is one of the rules of connecting statements into arguments that Logic is concerned with. The object of Logic is all such rules.

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the end