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Asked by janika

is this reversible
"a dos is a mamamal"?
1. its false
2. true, a animal is a dog if (and only if) it is a mammal
3. true, an animal is a mammal if (and only if) it is a dog
4. true, if an animal is a dog, then it is a mammal
13 years ago

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Answered by bobpursley
4 is true.
13 years ago
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is this reversible
"a dos is a mamamal"?
1. its false
2. true, a animal is a dog if (and only if) it is a mammal
3. true, an animal is a mammal if (and only if) it is a dog
4. true, if an animal is a dog, then it is a mammal

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