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PHI 103 W2 D2

PHI 103 W2 D2

Author: david utsey

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We have learned this week about deductive reasoning, including what it takes for an argument to be valid. This discussion allows us to get more practice with the concept through making arguments valid. Below you will see a list of arguments. These arguments are not presented in standard form, and each is missing a premise that would be necessary to make it valid. Your tasks will be to put the argument into standard form and add the missing premise that would validly link the premises to the conclusion.
Prepare: To prepare to respond to this prompt, reread the section from Chapter 2 of our book titled “Extracting Arguments in Standard form,” all required portions of Chapters 3 and 4, as well as the guidance and required media for this week. Further assistance in the filling missing premises can be gained from watching the video Constructing Valid Arguments (Links to an external site.)Links to an external site..
Reflect: Look at the list of argument options below. Choose an argument that has not yet been chosen by any of your classmates. Think through the reasoning and determine what premise is (or premises are) missing that would be needed to make the argument valid. You might also consider challenging yourself by choosing from the more difficult examples in the list (at the bottom).

Choose from the following list of argument options.

Flipper is a dolphin, so Flipper is a mammal.
Football is dumb because it is a waste of time.
If he loved you he would have shown up on time with flowers. He must not love you.
All mammals bear live young, so dragons are not mammals.
Abortion kills a human being, therefore abortion is wrong.
He broke the record for rushing yards in a game on that last play. Therefore he holds the record.
He won the election. So he will be the next governor.
He won’t go to the wedding since he doesn’t like mushy stuff and weddings are mushy.
I can’t go to the movies with you – I have a test tomorrow and I have to study.
Mike loves pickles. Pickles come from cucumbers. Therefore Mike loves cucumbers.
You shouldn’t go out with that guy. He rides a motorcycle and goes to bars.
Capital punishment is wrong because it is killing and it doesn’t save anyone’s life.
You shouldn’t use drugs because they are addictive and can ruin people’s lives.
To fix your care you will need money. However, to have money you have to have money. It appears that you need to get a job.
To go to the movie you have to have a ticket.  To buy a ticket you must pay money.  Thus, to go the movie you must pay money.
If you don’t do your chores then you can’t have any dessert. You really like dessert, so you will certainly do your chores.
You will get an A if you study hard and always come to class. You came to class every time and studied. You are bound to get an A.
Julie is allergic to gluten. So she won’t be having any bread.
Only women can have babies, so women are more important to the survival of the species.
If I wear that cologne then women will love me. I bought that cologne, so women are going to love me.
I can’t go to the party because there will be alcohol there, and I am a Mormon.

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