The phrase "ample demonstration" is correct and usable in written English.
It can be used when referring to a sufficient or generous display of evidence or proof regarding a particular point or argument.
Example: "The study provided ample demonstration of the effectiveness of the new teaching method."
Alternatives: "sufficient evidence" or "plentiful proof".
A day at the Rose Center is ample demonstration that Kant missed a trick.
The third game was ample demonstration of everything remarkable about Venus's run.
The gusto with which they danced on the bus was ample demonstration of that.
"This is ample demonstration that Beijing only has the well-being of Hong Kong's people at heart," Mr. Lam said.
There are his 15 Tests for starters and the ample demonstration he has the temperament to play and compete at the highest level: temperament is a huge factor.
The scenarios are standard -- there are frolics in schoolrooms, convents and open fields -- and acts performed are ample demonstration that there is nothing new under the sun or under the sheets.
Tomorrow morning features a family program with the bagpipe player Jack Kehoe explaining how his instrument works, with ample demonstrations.
It shows how bad things can get: throughout his 30-year career, Cox provides ample demonstrations of how crass industry lawyers are, how bonds and copyright issues destroy the artistic impulse (intriguingly, he argues for a massive deregulation of copyright), and how big companies refuse to distribute films after having bought them.
The venue was perfect for this mother-daughter evening and allowed the group ample space for the cooking demonstration and dining.
Secondly, the lower child to therapist ratio in the OR group ensures ample time for treatment and demonstration of techniques to caregivers.
The outdoor event also includes cooking demonstrations, shucking competitions and ample opportunity to sample the island's famed shellfish, including Malpeque oysters and the plump farmed mussels.
