Necessary And Sufficient Condition Indicator Words
because of
causal
caused by
causal
determined by
causal
induced by
causal
is an effect of
causal
leads to
causal
played a role in
causal
produced by
causal
product of
causal
promoted by
causal
reason for
causal
responsible for
causal
was a factor in
causal
no and beginning of sentence
modifies necessary condition
except
necessary
must
necessary
only
necessary
only if
necessary
required
necessary
then
necessary
unless
necessary
until
necessary
without
necessary
all
sufficient
any
sufficient
every
sufficient
if
sufficient
if shows up in secknd half of sentence
sufficient
in order to
sufficient
people who
sufficient
when
sufficient
when shows up in second half of sentence
sufficient
whenever
sufficient
except
unless equation
unless
unless equation
until
unless equation
without
unless equation
unless equation
1. whatever term is modified by term becomes necesary condition 2. remaining term is negated and becomes sufficient condition
