necessary condition

Cultural  

1. In mathematics, a condition that must be satisfied for a statement to be true, but that does not in and of itself make it true. For example, a necessary condition to become president of the United States is that a candidate be over thirty-five years of age, but just being over thirty-five does not make one president.

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Example Sentences

Endorsing the moral equality of human beings, Lincoln implied, was a necessary condition for being fully American.

From The Wall Street Journal

"Reducing inflation was a necessary condition, but it is not sufficient."

From Barron's

"Since the beginning of the war, we said that in order to achieve victory - to defeat Hamas and to free all our hostages, two missions that are intertwined - there is one necessary condition: We must not reach a situation of famine, both from a practical and a diplomatic standpoint," he said.

From BBC

This meant oxygen is a necessary condition for Candida growth.

From Science Daily

And so it's not a sufficient condition, but it's a necessary condition.

From Salon