Exam 3 Flashcards
what is the symbol for a conditional?
a horseshoe
what is the symbol for a conjunction?
A dot
what us the symbol for a negation ?
the tilda ~
what is the symbol for a disjunction?
V
what is the symbol for a biconditional?
Three lines
what would the truthntable for a disjunction look like ?
p. q. |PvQ
what is necessary for a conjunction to be true?
both conjuncts or component proposotions must be true
what’s the rule of negation?
false becomes true or true becomes false
in disjunction (V) when is the only time a value will be false?
when both sides are false
In a conjunction when is the only time a value will be true ?
when both sides are true
whats a contingency
a contingency occurs if the values under the main logical operator are mixed
what makes a statement self contradictory?
if every value under the main logical operator is false
what makes a tautologous statement ?
if everything is true under the main logical operator
what’s the outcome of a conjunction
T
F
F
F
what us the outcome of a disjunction?
T
T
T
F
