Determine whether the following are tautology, contradiction or contingency 1. If I will bring my umbrella and it will rain today, then I will bring my umbrella. 2. If you are President of the United States, you are both older than 35 and an American citizen. 3. It is not the case that either you need a credit card or I have cash. 4. If I am eating my lunch, then either I eat my lunch or drink coffee. 5. If either I will take the quiz or pass the test, then I will take the quiz and pass the test. 6. If either Abby or Bernie goes to work then Cathy and Donnie will be left behind. 7. If Donnie will be left behind then Frances will have a playmate. 8. If Abby goes to work then Frances will have a playmate. 9. If the economy improves, then if there will be more jobs available, then people will have more money and they will have a greater buying power. 10. Maria is friendly and not sociable if and only if she is friendly, then she is sociable.

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Determine whether the following are tautology, contradiction or contingency
1. If I will bring my umbrella and it will rain today, then I will bring my
umbrella.
2. If you are President of the United States, you are both older than 35 and
an American citizen.
3. It is not the case that either you need a credit card or I have cash.
4. If I am eating my lunch, then either I eat my lunch or drink coffee.
5. If either I will take the quiz or pass the test, then I will take the quiz and pass
the test.
6. If either Abby or Bernie goes to work then Cathy and Donnie will be left
behind.
7. If Donnie will be left behind then Frances will have a playmate.
8. If Abby goes to work then Frances will have a playmate.
9. If the economy improves, then if there will be more jobs available, then
people will have more money and they will have a greater buying power.
10. Maria is friendly and not sociable if and only if she is friendly, then she is
sociable.
Transcribed Image Text:Determine whether the following are tautology, contradiction or contingency 1. If I will bring my umbrella and it will rain today, then I will bring my umbrella. 2. If you are President of the United States, you are both older than 35 and an American citizen. 3. It is not the case that either you need a credit card or I have cash. 4. If I am eating my lunch, then either I eat my lunch or drink coffee. 5. If either I will take the quiz or pass the test, then I will take the quiz and pass the test. 6. If either Abby or Bernie goes to work then Cathy and Donnie will be left behind. 7. If Donnie will be left behind then Frances will have a playmate. 8. If Abby goes to work then Frances will have a playmate. 9. If the economy improves, then if there will be more jobs available, then people will have more money and they will have a greater buying power. 10. Maria is friendly and not sociable if and only if she is friendly, then she is sociable.
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