Thesaurus / provable
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.


Mountaineers Reinhold Messner and Peter Habeler first proved that humans could climb to the top of Mount Everest without using supplemental oxygen in 1978.

Kites and darts form the basic units of another kind of Penrose tiling for which Conway proved many interesting theorems about their uncountability, pentagonal symmetry and their other connections to the golden ratio.

To prove Plato’s cubes actually appear in nature, they needed to show more than just a coincidental echo between geometry and a few handfuls of rock.

Horford, who signed a four-year, $109 million contract with the Sixers in 2019, proved to be a poor fit alongside center Joel Embiid.

Through the offseason, Smith developed physically, and during the season he proved he could match up against the conference’s best big men.

To prove the impossibility of squaring the circle — a problem that’s at least 2,000 years old — we needed the modern theory of transcendental numbers that cannot be roots of integer polynomials.

Hijacking our biological “touch machinery” has already proved useful.

Although choosing the right protein out of many possibilities to generate the best immune response may still prove tricky, mRNA vaccines “clearly have promise,” she says.

Until proven vaccines are deployed at scale, the fight against coronavirus is one without an easily-defined weapon.

We’d love to prove to the corporate alcohol makers of the world that when you put the customer first, you’ll eventually win.


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Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.