What is another word for open to proof?
Pronunciation: [ˈə͡ʊpən tə pɹˈuːf] (IPA) 
The phrase "open to proof" refers to something that is capable of being verified or proven. Synonyms for this phrase can include "verifiable," "substantiated," "authenticated," or "corroborated". Other synonyms could be "supportable," "defensible," "provable," or "justifiable". These words indicate that the matter can be supported by evidence or facts. Additionally, words like "evidenced," "proven," "validated," or "confirmed" can be used to describe something that is open to proof. Overall, these synonyms all convey the idea that something is subject to being proven or verified by evidence or argument.
