if and only if

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“There is a high option value of being able to act if and only if some of the risks of the uncertainties manifest themselves,” he said.

From The Wall Street Journal • Mar. 2, 2026

“Ormat would seek BLM permission for further development if, and only if, the project proves the commercial viability of the geothermal resources,” it said.

From Washington Times • Apr. 14, 2023

Following games, one of his chosen players would get to wear it if and only if his work ethic was worthy of a construction worker paid by the hour.

From Washington Post • Mar. 1, 2023

But Harpster preaches they are also much more: The recordings are ciphers that can be decoded to help solve murders, if, and only if, you take his training course.

From Salon • Nov. 22, 2022

‘That is the funniest joke I have ever heard’ is true if and only if I think it so.

From "The Invention of Science" by David Wootton