Showing posts with label false. Show all posts
Showing posts with label false. Show all posts

Sunday, May 8, 2011

Learning Truth Value


Assuming you have a friend named Burhan. He's a doctor, and you also know he's PDI-P cadre. If someone tells you, "Burhan a doctor and the Golkar Party cadres." You will say that the statement is false. On the other hand, to say to you, "Burhan a doctor or a cadre of the Golkar Party." Then you will justify that statement. These sentences is a compound sentence - a mix of simple sentences with conjunctions logic. Actually, when a statement could be true? Also when we say, wrong? To answer this question, we need to know the truth value of simple sentences that constitute them. After that the truth value of compound sentences can be in the know of the truth value of simple sentences that constitute them and how they are combined.
The value of truth of a statement is a classification of whether true or false statement, which can be denoted by B or S. In electronic discussion, especially the digital gate, the notation used is 1 to B and 0 to S. Examples of statements that is true is the 'Hyderabad is the capital of Central Java province. " So that statement is worth T. Certainly the sentence which says that the FC is the capital of Central Java province is the wrong phrase, valued F.
A simple way is used to determine the truth value of a compound sentence is to make a truth table. Table truth make all possible combinations of truth value of a simple statement of truth value is given. Truth table also provides the difference argument is valid and not valid.

Friday, May 6, 2011

All should stated

All logical reasoning based on the statement. A statement is a sentence which has the only true or false value only.

EXAMPLE

a. Apple Computer Manufacturing.
b. Apple Computer Manufacturing the world's best.
c. Would you buy an IBM computer?
d. A computer thatget 2 jt discount 20% worth 1 jt .
e. I lied.

COMPLETION

a. The sentence "Apple Computer Manufacturing" is true, then, a sentence is a statement.
b. The sentence "Apple Computer Manufacturing the world's best" is an opinion. True for some and not for others, therefore, is not a sentence.
c. The phrase "Would you buy an IBM computer?" is the question. The question can also be completely wrong, therefore, this is not a statement.
d. The phrase "A computer that obtain 2 jt discount 20% worth 1 jt" is the wrong sentence. So, this is a sentence statement (20% discount from 2 jt is 1.6 jt).
e. The phrase "I lied." This sentence is a paradox, if he's right, it will be contrary to what he said. If he is wrong, then what is said is true, but it is justified as opposed to what he said. Therefore, this sentence is not a statement.