Sufficient And Necessary Conditions Flashcards

1
Q

Only Where

A

Necessary Condition

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2
Q

Each

A

Sufficient Condition

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3
Q

Only

A

Necessary Condition

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4
Q

If But Only If

A

Each variable is both a sufficient and a necessary condition. Diagrammed with a double arrow

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5
Q

Wherever

A

Sufficient Condition

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6
Q

Only v. The Only

A

“Only” introduces a necessary condition, “the only” introduces a sufficient condition

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7
Q

Whenever

A

Sufficient Condition

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8
Q

When

A

Sufficient condition

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9
Q

Only when

A

Necessary condition

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10
Q

“No” Statements… “No X’s are Y’s”

A

Pick a variable and make it the sufficient condition. then negate the other variable and make it the necessary condition

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11
Q

If

A

Sufficient condition

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12
Q

Without

A

Necessary condition. Negate the other part of the sentence and make it the sufficient condition

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13
Q

Every

A

Sufficient condition

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14
Q

People who

A

Sufficient condition

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15
Q

Either/Or… “Either X or Y”

A

Pick a variable and make it the necessary condition. Negate the other variable and make it sufficient condition

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16
Q

Any

A

Sufficient condition

17
Q

If and Only If

A

Each variable is both a sufficient and necessary condition. Diagrammed with a double arrow

18
Q

All

A

Sufficient condition

19
Q

Only if

A

Necessary condition

20
Q

Where

A

Sufficient condition

21
Q

Unless

A

Necessary condition. Negate the other part of the sentence and make it the sufficient condition