It's a convenient fiction to consider this equation as continuous over the range of values allowed.

The world now knows that the weapons of mass destruction were a convenient fiction.

The order of events is, at best, a convenient fiction.

The obligation to protect Murgen had become a convenient fiction for both men.

The reason we were summoned here may be a convenient fiction.

He did not consider that religion was a convenient fiction.

Historians will long argue whether the theory was right, or a politically convenient fiction.

However, it must be said that this is a convenient fiction!

This whole idea of protecting rights was just a convenient fiction.

Clocks offer at best a convenient fiction, he says.