Warm Up 11 Laws of Logic B Day

Last updated about 3 years ago

3 questions

1

Draw a conclusion from the statement. If a parasite lives in or on a host organism, then it harms its host. A virus is a parasite.

It will harm the host.

It lives in or on a host.

I have a cold.

Invalid

Using the Law of Syllogism, which of the following completes the statement to form a valid conclusion? If it is snowing heavily, then school will be canceled. If school is canceled, the big test will not be given today. It is snowing heavily, therefore

look out for the snowplows while driving to school.

the roads will be hard to drive on.

the big test will not be given today.

you should call the school to see if school is canceled.

Which law of deductive reasoning is being used, if any? If a triangle is equilateral, then all three sides are congruent. If all the sides of a triangle are congruent, then the angles opposite them are congruent. Therefore, if a triangle is equilateral, then the angles opposite the sides are congruent.

Law of Detachment

Law of the Contrapositive

Law of Syllogism

Not Valid

Draw a conclusion from the statement.
If a parasite lives in or on a host organism, then it harms its host.
A virus is a parasite.

It will harm the host.

It lives in or on a host.

I have a cold.

Invalid

Using the Law of Syllogism, which of the following completes the statement to form a valid conclusion?
If it is snowing heavily, then school will be canceled.
If school is canceled, the big test will not be given today.
It is snowing heavily, therefore

look out for the snowplows while driving to school.

the roads will be hard to drive on.

the big test will not be given today.

you should call the school to see if school is canceled.

Which law of deductive reasoning is being used, if any?
If a triangle is equilateral, then all three sides are congruent. 
If all the sides of a triangle are congruent, then the angles opposite them are congruent. 
Therefore, if a triangle is equilateral, then the angles opposite the sides are congruent.

Law of Detachment

Law of the Contrapositive

Law of Syllogism

Not Valid