2.2 Flashcards
1
Q
an if-then statement is false if, and only if, the hypothesis is _____ and the conclusion is ______
A
true, false
2
Q
the negation of “if p then q” is ______
A
p /\ ~q
3
Q
the converse of “if p then q” is ______
A
if q then p
4
Q
the contrapositive of “if p then q” is ______
A
if ~q then ~p
5
Q
the inverse of “if p then q” is ______
A
if ~p then ~q
6
Q
a conditional statement and its contrapositive are _______
A
logically equivalent
7
Q
a conditional statement and its converse are not ______
A
logically equivalent
8
Q
R is a sufficient condition for S means if _______ then ______
A
R, S
9
Q
R is a necessary condition for S means if ______ then ______
A
S, R
10
Q
R only if S means if ______ then ______
A
R, S
11
Q
order of operations
A
- ~
- /\, \/
- ->, <->
12
Q
A
