olemus
tõesust teaduslikult demonstreerima

Wiktionary, verb:
1. (transitive) to demonstrate that something is true or viable; to give proof for

https://comparewords.com/demonstrate/prove

näiteid
ISO/IEC 18045:
demonstreerima vastavust formaalse analüüsiga
matemaatilises tähenduses
= show correspondence by formal analysis
in its mathematical sense

https://en.wikipedia.org/wiki/Mathematical_proof

vt ka
- tõendama
- tõestama (2)
- tõestus