ICS 253

Discrete Structures I

Fall 2007

King Fahd University of Petroleum & Minerals - Home Page Information & computer Sciences Department

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Groups' Questions

Students are divided into 4 groups where each is going to ask questions throughout the course. One good question will be chosen in the class to be answered by other groups. The groups of the chosen question and the one who answers it will get 1 mark each.

Group 1

 

AL-OTAIBI, NAYEF KHALED
AL-HADI, FARES NAYEF
AL-ALOLA, AHMAD ABDULLAH
SAMNUDI, RAYED ADEL
NAWAB, FAISAL SAUD
 

 

Group 2

 
AL-BUTAIRI, MUSAB MUAIYED
AL-JAMMAZ, AHMAD
AL-BATTAH, FAISAL AHMAD
AL-SHAIKH, ABDULLAH
AL-NUNU, BASEL MONTHER
 

Group 3

 
AL-FARDAN, ALI MAHDI
AL-DAR, ABDULLAH
AL-GUWAISEM, MOHAMMAD
AL-FASHKHI, AMMAR NOURI
AL-RAMADHAN, MOUSA
 

 

Group 4

 
AL-RASHEED, AHMAD ALI
ALI, SAIYED ALI HASSAN
AL-AHMARI, TURKI ALI
AL-HARTHI, YASSER GHAZI
 

 
Total Marks =  0.5 Total Marks =  0.5 Total Marks =  1 Total Marks =  0

 

 

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First Groups Questions:

 

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Group 1:Let P(x,i) = "student x is a research assistant for instructor i." Using predicates and quantifiers, rewrite the following statement: "every instructor in KFUPM has exactly 3 graduate students as research assistants."

 
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Group 2: Using predicates and quantifiers, rewrite the following: "every junior in this class scored above 90 in the first exam", where the domain of discourse is the set of all students.

 

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Group 3: Show that p Å q is logically equivalent to p «Øq without using truth tables.

 
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Group 4: On one Sunday morning, a judge came to prison and said to one man: "You are sentenced to death. You will be executed in the morning of one of the days of next week. We have already decided the day, but you will get to know the day, we want you executed, during the dinner of the day before it." Explain why the judge's statement is false.