Exercise 2.3 Determine whether the given argument is valid or not using Euler circles. 48 1. No student is lazy. Sonny is a scholar. All scholars are lazy. Therefore, Sonny is not a student. 2. Some students are handsome. All males are handsome. Therefore, some students are males. 3. Pasay is a busy city. Karylle lives in a city with motorcycle lanes. No busy city has motorcycle lanes. Therefore, Karen does not live in Pasay.

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ISBN:9780470458365
Author:Erwin Kreyszig
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Exercise 2.3
Determine whether the given argument is valid or not using Euler circles.
48
1. No student is lazy.
Sonny is a scholar.
All scholars are lazy.
Therefore, Sonny is not a student.
2. Some students are handsome.
All males are handsome.
Therefore, some students are males.
3. Pasay is a busy city.
Karylle lives in a city with motorcycle lanes.
No busy city has motorcycle lanes.
Therefore, Karen does not live in Pasay.
4. Scientists are creative people.
Every engineer is happy.
No one who is creative is also happy.
Therefore, engineers are creative people.
Transcribed Image Text:Exercise 2.3 Determine whether the given argument is valid or not using Euler circles. 48 1. No student is lazy. Sonny is a scholar. All scholars are lazy. Therefore, Sonny is not a student. 2. Some students are handsome. All males are handsome. Therefore, some students are males. 3. Pasay is a busy city. Karylle lives in a city with motorcycle lanes. No busy city has motorcycle lanes. Therefore, Karen does not live in Pasay. 4. Scientists are creative people. Every engineer is happy. No one who is creative is also happy. Therefore, engineers are creative people.
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