ECAT Pre General Science Mathematics Chapter 3 Logic

To draw conclusions from some experiments or few contacts only is called:

• Deduction A
• Implication B
• Conjunction C
• Induction D

A statement which is already false is called

• Tautology A
• Contrapsitive B
• Absurdity C
• Universal quantifiers D

The greater part of our knowledge, is based on

• deduction A
• induction B
• conjunction C
• disjunction D

A daclarative statement which may be true or false but not both is called a

• hypothesis A
• proposition B
• implication C
• conjuction D

An implication of p and q is denoted by

• 
  A
• 
  B
• 
  C
• 
  D

The conditional statement "If p then q" is logically equivalent to the statement.

• Not p or Not q A
• Not p and Not q B
• Not p or q C
• p or q D

If p is false, ~ p is

• true A
• not true B
• equal to p C
• conjuction D

• hypothesis A
• implication B
• consequent C
• conditional D

10 is a even number or 0 is a natural number, then truth value of this disjunction is

• False A
• True B
• Not discussed C
• negation of first D

Conjunction of two statements p and q is denoted symbolically as

• 
  A
• 
  B
• 
  C
• 
  D

A conjunction is considered to he true only if both its components are

• false A
• equilvalent B
• equal C
• true D

According to Aristotle, in proposition there could be

• one possibilities A
• two possibilities B
• three possibilities C
• seven possibilities D

Logic in which there is scope of third or fourth possibility is called.

• non-Aristotlian logic A
• Aristotlian logic B
• Postulates C
• induction logic D

Any conditional and its contrapositive are

• Equilavant A
• Opposite B
• Equal C
• Not Equal D

For reasoning, we have to use

• implication A
• conjunction B
• induction C
• proposition D

The symbol ∃ stand for

• Such that A
• This implies that B
• For all C
• There exist D

If both p and q are false, then the disjunction of p and q is

• false A
• true B
• equal C
• equivalent D

To draw conclusions from some expreiments or few contacts only is called

• deduction A
• implication B
• conjunction C
• induction D

10 is a even number or 0 is a natural number, then truth value of this disjunction is

• false A
• true B
• not discussed C
• negation of first D

• conclusion A
• consequent B
• hypothesis C
• conditional D

While witting his hooks on geometry, Euclid used

• inductive method A
• deductive method B
• implication C
• proposition D

The converse and Inverse are

• Equivalent to each other A
• Opposite to each other B
• Equal to each other C
• Not Equal to each other D

While writing his books on geometry, Euelid used

• Inductive method A
• Deductive method B
• Implication C
• proposition D

The statements of the form "If p then q" are called

• hypothesis A
• conditional B
• disjunction C
• conjunction D

The symbol∋ stand for

• Such that A
• There exist B
• For all C
• Belongs to D

-p is the

• Implication of p A
• disjunction of p B
• negation of p C
• conjunction of p D

• p and q A
• p or q B
• p implies q C
• p is equivalent to q D

If p is false, -p is

• True A
• Not true B
• Equal to p C
• Conjunction D

The disjunction of two statements p and q, is denoted symbolically as

• 
  A
• 
  B
• 
  C
• 
  D

A statement which is already false is called

• Tautology A
• Contrapsitive B
• Absurdity C
• Universal quantifiers D