Propositional logic is referred as 1. statements logic. 2. proposition which join entire proposition. 3. argument logic. 4. proposition does not join entire proposition. Select the correct answer:

which one of the following is not correct?
1. If one of the premises is invalid, the argument is not true
2. An argument cannot be sound if one of the premise is false
3. If premises entail the conclusion then the argument will be valid
4. A deductive argument may be valid without being sound

A

2 and 3

B

Only 1

C

Only 4

D

1, 2 and 4

"From any true substitution instance of a propositional function, we may validly infer the existential quantification of that propositional function." Identify the rule.

A

Universal instantiation

B

Existential Generalisation

C

Existential Instantiation

D

Universal Generalisation

The general purpose of the Data Access Object (DAO) pattern is to avoid these logic related problems by separating data access logic from business logic and presentation logic.

A

True

B

False

Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer :I. A huge truck overturned on the middle of the road last night.II. The police had cordoned off the entire area in the locality last morning for half of the day.

A

If statement I is the cause and statement II is its effect.

B

If statement II is the cause and statement I is its effect.

C

If both the statements I and II are independent causes.

D

If both the statements I and II are effects of independent causes.

E

If both the statement I and II are effects of some common cause.

What is the output of this program ? class main_arguments {
public static void main(String [ ] args)
{
String [][] argument = new String[2][2];
int x;
argument[0] = args;
x = argument[0].length;
for (int y = 0; y < x; y++)
System.out.print(" " + argument[0][y]);
}
}

A

1 1

B

1 0

C

1 0 3

D

1 2 3

In class, students want to join sports. 15 people will join football, 24 people will join basketball, and 7 people will join both. How many people are there in the class?

A

19

B

82

C

64

D

30

Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statements : The President of XYZ Party indicated that 25 independent Members of Legislative Assembly (MLA) are seriously considering various options of joining some political party. But in any case all of them collectively will join one party only.

Conclusions :
I. The 25 independent MLAs will join XYZ party in a short period of time.
II. The 25 independent MLAs will join some other political party in a short period of time.

A

Only conclusion I follows

B

Only conclusion II follows

C

Either I or II follows

D

Neither I nor II follows

E

Both I and II follow

Rules of inference are
1. applied when the main operators are in use.
2. nine in number.
3. applied only to entire statements.
4. not applied to entire statements.
Select the correct answer:

A

1, 2 and 3

B

2, 3 and 4

C

1, 3 and 4

D

All of these

What is not represented by using propositional logic?

A

Objects

B

Relations

C

Both Objects & Relations

D

None of the mentioned

What all forms can be anything tautology, contingent and self contradictory.
1. Proposition
2. Propositional Form
3. Statement
4. Statement Form

A

1 and 3

B

1, 2, 3 and 4

C

1, 3 and 4

D

2 and 4