provability vs demonstrability

provability and demonstrability both are nouns.

Word	Noun	Adjective	Verb	Adverb
provability	Yes	No	No	No
demonstrability	Yes	No	No	No

As nouns, provability and demonstrability are synonyms defined as:

provability and demonstrability: capability of being demonstrated or logically proved

provability (noun)	demonstrability (noun)
capability of being demonstrated or logically proved	capability of being demonstrated or logically proved