·
Determine
↑
↳
them
of
2
exactly
Build
proposition
compound
a
is
true
with
cases
Combine
cases
(P191) v
and
with
is
false
involving
different
3
propositional
variables
is
that
true
when
otherwise.
(1)
AND
OR (v)
(D1r) v
Conanr)
SUMMARY
-
SYMBOL
NAMES
D
Negation
1
Conjunction
Meaning
I
I
I
II
v
Truth
Not
Disjunction
⑦
Exclusive
>
-
2
Or
Por
q
P
Exclusive
of
or
Conditional
P
implies
Biconditional
If
p thena
p and
q
converse
is e q
inverse
inverse
Contrapositive
contrapositive
of p
Bedmas
logical precedence
q
>
-
NCDCB
*
j
Bedmas
For
logic
Tautology
of
of
,
Only
false
False
both
when
when
true
are
are
false
values
match
both
both
When
Tre
converse
-
the
Only false when p is true and g isn't
q
P
9
Only
original variable
of
Opposite
p
and
D
value
when
both values match
p and
a
reversed
and
a
opposite of
p
and
q
and
reverse
& and p
order
p
opposite
and
of
q
p and
q
X
X
Always
True
X
Always
False
#I I
Contradiction
contingency
savisable
Not
a
Never
tautology or contradiction
contradictions .
The
could
be
at
least
both
in one
case
-
-