Necessary and Suf ficient Conditions True/False

Necessary and Suf ficient Conditions
. Confusing necessary and sufficient conditions is a common mistake in reasoning.

. If A is necessary for B, then B is sufficient for A.

. For human beings, breathing is a sufficient condition for staying alive.

. Being at least eighteen is a necessary condition for voting in the United States.

. The presence of oxygen is a sufficient condition for a candle to be burning.

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