# Math Help - little discrete math help

1. ## little discrete math help

hello all ,

in this problem , we should Determine whether each sentence is a proposition
(we should Write T for true and F for each question, and if we are not sure explain)
(a) 2+3 = 7
(b) 2n + n is a prime for infinitely many n
(c) 2n = n2 for some n
(d) If the world is flat, then 2 + 2 = 4
(f) Why is induction important?
(g) The difference of two primes
(h) A2 = 0 implies A = 0 for all A
(i) China is in Europe

so waiting yr help .

2. Originally Posted by uni_student
in this problem , we should Determine whether each sentence is a proposition
This is an easy, simple exercise.
Ask the following question of each sentence: “Is it meaningful to say that this sentence is true or false.
If the answer is yes, this sentence is either true or false, then it is a proposition.
Otherwise, it is not a proposition.

3. Originally Posted by Plato
This is an easy, simple exercise.
Ask the following question of each sentence: “Is it meaningful to say that this sentence is true or false.
If the answer is yes, this sentence is either true or false, then it is a proposition.
Otherwise, it is not a proposition.

anyways can u give me the answers plz ?

4. Originally Posted by uni_student
hello all ,

in this problem , we should Determine whether each sentence is a proposition
(we should Write T for true and F for each question, and if we are not sure explain)
(a) 2+3 = 7
(b) 2n + n is a prime for infinitely many n
(c) 2n = n2 for some n
(d) If the world is flat, then 2 + 2 = 4
(f) Why is induction important?
(g) The difference of two primes
(h) A2 = 0 implies A = 0 for all A
(i) China is in Europe

so waiting yr help .
Originally Posted by uni_student
anyways can u give me the answers plz ?
Have you tried Platos method on any of these?

Look at the first one:

(a) 2+3 = 7

Does it make any sense to ask if its true that two plus three equals seven?

If it does make sense to ask this, what is the answer?

Lets look at another:

Does it make sense to ask if this is true or false?

RonL

5. YOU try the method on (b) & (e).

6. can i tell u something ?
i am taking this course as tutorial course...i havent bought any book plus i dont know anything about this course.
its just a small assignment given by the instructor.

anyways for the first one it doesn't make sense to ask.
and the last one is false.
plz do me a favor and tell the answers !

its just a small assignment.. ill study for the exam laters on.