The phrase "a very simple fact" is correct and usable in written English.
It can be used when you want to emphasize that something is straightforward and easy to understand.
Example: "It's a very simple fact that water boils at 100 degrees Celsius at sea level."
Alternatives: "an obvious truth" or "a basic fact".
"It's a very simple fact that the novels of Dickens preceded legislation that stopped children working in factories.
We women, in trying to make our case clear, always have to make as part of our argument, and urge upon men in our audience the fact - a very simple fact - that women are human beings.
Phil Hogan, the EU's agriculture commissioner, told the Observer that it was a "very simple fact" that remaining inside the single market and customs union, or allowing Northern Ireland to do so, would end the standoff.
"It is a very simple fact that most research that is going to be medically relevant is going to be done in animals first," Atchison says.
But there's a method to the madness here, and Goldberg wouldn't be getting a mega push if it wasn't for a very simple fact: He draws.
What is important to our conversation about productivity and career growth is a very simple fact: Productive people get promoted, and unproductive people get left behind.
"Glenn gave a couple of talks where he mentioned the very simple fact that the local business sector is the root of prosperity around the world, and I said, 'Except in poor countries,'" says Duggan.
No, it's down to the very simple fact that the human imagination has a limited capacity.
But I think they should be patient on it for the very simple fact that we're working off of a positive feedback loop right now, not a negative feedback loop where we were back in the early part of '09.
That league's president, Alexander Medvedev, told Bloomberg News on Monday, "Our competition is based on the very simple fact that the tax conditions in Russia are better than in the U.S".
