The negation of a proposition p
is notp.
So if the propsition p is true
, then the propoitio notp is not true.
If the proposition p is not
true ,then notp is true.
The truth table of P and not is as
folows:
p
notp
T F
F T.
Therefore
applying this to the pairs of staments given we easily determinne:
I. The Canucks won last year.
The Canucks lost last
year.
The second stement is negation of the first , as it
negates the truth (or false ) of the
first.
II. A rhombus is a trapezoid.
A trapezoid is not a
rhombus.
The first statement value is F. The second
statement is true. But it is not the negation of the first , but
the negation of the proposition a trapezoid is a rhombus.
III. A
square is a rectangle.
A square is not a
rectangle.
P is true , p is not true form.
So this a
negation.
Answer:
e)
I and III is correct choice.
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