Of a statement or hypothesis that can be proven.(adjective)
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Use "provable" in a sentence
"I maintain that the demand for rarities, while not readily apparent or provable, is very strong, and that reports of minimal supply in 2010 have been overstated."
"(Trust your wife) $1500 per month in provable income will very likely be enough for both of you with a 50% reduction in the amount of required income for her."
"All of these involve experimental verification, and can be properly called provable fact."