Vertaling van "proves his unwavering " (Engels → Frans) :

TERMINOLOGIE

the elector must prove his identity
l'électeur devra prouver son identité

to prove that the licensee has given his consent
preuve de l'accord du licencié

IN-CONTEXT TRANSLATIONS

For him, a right became real only if it was accessible to all, which proves his unwavering dedication to what he saw as sacred individual freedoms.
Car pour lui, un droit devenait réel seulement s'il était accessible à tous, ce qui prouve son attachement inébranlable à ces libertés individuelles qu'il considérait comme sacrées.

From the very outset, the construction of Europe proved to be a difficult road, strewn with obstacles, which Mr Gaetano Martino, however, with the support of his deep-seated humanist culture and his unwavering faith in Europe, successfully negotiated.
Dès le début, la construction européenne s'avéra difficile, parsemée d'obstacles. Mais Gaetano Martino, en s'appuyant sur sa profonde culture humaniste et sur son inébranlable foi en l'Europe, les surmonta avec succès.