Conditional Indicators

Question 1

if

Answer 1

Sufficient

A → B

Contrapositive

if what?

Question 2

when(ever)

Answer 2

Sufficient

A → B

Contrapositive

when(ever) what?

Question 3

any(time)

Answer 3

Sufficient

A → B

Contrapositive

any(time) what?

Question 4

all

Answer 4

Sufficient

A → B

Contrapositive

all what?

Question 5

every(time)

Answer 5

Sufficient

A → B

Contrapositive

every(time) what?

Question 6

in order to

Answer 6

Sufficient

A → B

Contrapositive

in order to what?

Question 7

people who

Answer 7

Sufficient

A → B

Contrapositive

people who what?

Question 8

each

Answer 8

Sufficient

A → B

Contrapositive

each what?

Question 9

then

Answer 9

Necessary

A → B

Contrapositive

then what?

Question 10

must

Answer 10

Necessary

A → B

Contrapositive

must what?

Question 11

necessary

Answer 11

Necessary

A → B

Contrapositive

what’s necessary?

Question 12

required

Answer 12

Necessary

A → B

Contrapositive

what’s required?

Question 13

only (if)

Answer 13

Necessary

A → B

Contrapositive

only (if) what?

Question 14

depends

Answer 14

Necessary

A → B

Contrapositive

depends on what?

Question 15

need (to)

Answer 15

Necessary

A → B

Contrapositive

need (to) what?

Question 16

have to

Answer 16

Necessary

A → B

Contrapositive

have to what?

Question 17

essential

Answer 17

Necessary

A → B

Contrapositive

what’s essential?

Question 18

precondition

Answer 18

Necessary

A → B

Contrapositive

what’s the precondition?

Question 19

and

Answer 19

And/Or/Neither-Nor

A + B → C (vertical)

Contrapositive

Question 20

or

Answer 20

And/Or/Neither-Nor

A → B or C (vertical)

Contrapositive

Question 21

neither… nor…

Answer 21

And/Or/Neither-Nor

=not this and not that:
A → ~B + ~ C (vertical)

Contrapositive

Question 22

if and only if

Answer 22

If and Only If (Together)

double must arrow: ↔

Contrapositive: A ↔ B = ~A ↔ ~B

Question 23

if but only if

Answer 23

If and Only If (Together)

double must arrow: ↔

Contrapositive: A ↔ B = ~A ↔ ~B

Question 24

all and only

Answer 24

If and Only If (Together)

double must arrow: ↔

Contrapositive: A ↔ B = ~A ↔ ~B

Question 25

but not otherwise

Answer 25

If and Only If (Together) double must arrow: ↔ Contrapositive: A ↔ B = ~A ↔ ~B

Question 26

when and only when

Answer 26

If and Only If (Together) double must arrow: ↔ Contrapositive: A ↔ B = ~A ↔ ~B

Question 27

Either.... or....

Answer 27

Either/Or (Inclusion) ~A → B Contrapositive

Question 28

no

Answer 28

No (Exclusion) A → ~B Contrapositive

Question 29

none

Answer 29

No (Exclusion) A → ~B Contrapositive

Question 30

nobody

Answer 30

No (Exclusion) A → ~B Contrapositive

Question 31

never

Answer 31

No (Exclusion) A → ~B Contrapositive

Question 32

unless

Answer 32

Unless (Exception) ~A (if not normal) → B Contrapositive

Question 33

except

Answer 33

Unless (Exception) ~A (if not normal) → B Contrapositive

Question 34

until

Answer 34

Unless (Exception) ~A (if not normal) → B Contrapositive

Question 35

without

Answer 35

Unless (Exception) without = unless I have ~A (if not normal) → B Contrapositive

Question 36

some

Answer 36

Some (Partial) A ←s→ B -

Question 37

few

Answer 37

Some (Partial) A ←s→ B -

Question 38

many

Answer 38

Some (Partial) A ←s→ B -

Question 39

at least one

Answer 39

Some (Partial) A ←s→ B -

Question 40

several

Answer 40

Some (Partial) A ←s→ B -

Question 41

not all

Answer 41

(fancy some) Some (Partial) =some are not: A ←s→ ~B -

Question 42

most

Answer 42

Most (Partial) A -m→ B A ←s→ B

Question 43

usually

Answer 43

Most (Partial) A -m→ B A ←s→ B

Question 44

probably

Answer 44

Most (Partial) A -m→ B A ←s→ B

Question 45

mostly

Answer 45

Most (Partial) A -m→ B A ←s→ B

Question 46

more often than not

Answer 46

Most (Partial) A -m→ B A ←s→ B

Question 47

if not both

Answer 47

And/Or/Neither-Nor ~ A or ~ B —> C Contrapositive -------- If A and B does not both occur, then C. = If not A or not B, then C.