The phrase "a simple demonstration that" is correct and usable in written English.
You can use it when introducing an example or evidence that illustrates a point or concept clearly and straightforwardly.
Example: "This is a simple demonstration that even small changes can lead to significant improvements in productivity."
Alternatives: "a straightforward example that" or "an easy illustration that".
The simple demonstration that a firm is selling a product in an overseas market at a lower price than it sells it in its domestic market suffices to give the importing country the right to impose an antidumping duty.
"The very simple demonstration that we are willing to take the label off the bottle and allow the bourbon to speak for itself takes it one step further," Mr. Orzio added.
This first simple demonstration that optogenetics can work in non-human primates is likely to lead to more optogenetics studies in monkeys as researchers begin the long path to transition the technology from research to therapy.
That is, the simple demonstration that AIP did not participate in perceptual size discrimination (vs. pattern discrimination) would be much more convincing if the contrast between the two tasks was sensitive enough to produce activation for this discrimination in another visual area, particularly a ventral-stream area such as LO.
A simple demonstration of that, Dr. Myhrvold said, is the shiny chrome cooking surface of a restaurant hibachi grill.
Although the experiment is a simple demonstration showing that the technology is possible and concealing an evil super-genius' underwater lair is a long ways away, Cummer believes that the technique has several potential commercial applications.
They all love the simple demonstrations that I frequently bring to the section.
The early evidence of benefit was theoretical and came from simple demonstrations that normal tissues receive less radiation dose.
You don't have to have a Hollywood production -- you can simply speak in front of the camera, or do a simple demonstration on your computer that captures the information for you.
A simple demonstration of this was that a piece of sheet made from the metal would bend double if bent slowly but snapped if bent quickly, just like an amorphous material such as pitch.
