Studied by 96 peopleIf
Introduce sufficient
By
Introduce sufficient
When
Introduce sufficient
Where
Introduce sufficient
All
Introduce sufficient
The only
Introduce sufficient
Every
Introduce sufficient
Any
Introduce sufficient
Only
Introduce necessary
Only if
Introduce necessary
Only when
Introduce necessary
Only where
Introduce necessary
Always
Introduce necessary
Must
Introduce necessary
Unless
Negate Sufficient
Until
Negate Sufficient
Without
Negate Sufficient
Or
Negate Sufficient
No
Negate Necessary
None
Negate Necessary
Not both
Negate Necessary
Never
Negate Necessary
Cannot
Negate Necessary
Is essential
Whatever is essential is Necessary
Is required
Whatever is required is Necessary
Is/Are
Subject is Necessary
If And/But Only If
Always together, never apart
A <> B, /B <> /A
Or, But Not Both
Always apart, never together
A -> /B, B -> /A
But Not Otherwise
Always together, never apart
A <> B, /B <> /A
Except
Always apart, never together
A -> /B, B -> /A
Embedded Conditionals
If 1st conditional, then 2nd unless 3rd conditional
X (1st conditional) → Y (2nd → 3rd conditional) turn into…
1st AND 2nd → 3rd conditional
And/Or in Sufficient
And: Cannot split arrow
Or: Split arrow
And/Or in Necessary
And: Split arrow
Or: Cannot split arrow
De Morgan’s Law
Switch the And → Or, Or → And
Flip & Negate everything
People who
Introduce sufficient
Note
Flashcard