The statement in symbolic form is
p ⋁q , is false omly when p and q
are both false.
Negation
The first truth is for negation .If p is a true
statement ,then the negation of p."not p". is a
false statement .If p is a false statement ,then "not
p" is a true statement .
Conjunction
The statement in symbolic form is p⋀q ,
is true only when both p and q are true.
Conditional
The conditional statement p→q is
true in every case except when p is
a true statement and q is a false
statement.
For the two simple statement ,there are
four distinct e cases. Example:
case 1(T,T): p is true and q is true.
case2(T,F):p is true and q is false.
case3(F,T): p is false and q is true.
case4(F,F): p is false and q is false.
Biconditional
The biconditional statement p↔q is true
only when p and q have the same truth
value,that is, when both are true or both
are false.