Definition of "provably" [provably]

• With proof; in a provable manner. (adverb)

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• "How about one more apology for being willfully, deliberately and provably wrong?"
• "A claim of 11,500 employees when a company actually has 11,600 is provably false, but not false advertising."
• "However, the particular statements here were nonactionable statements of opinion; they were not provably false as required for defamation, because they advocated one of several feasible interpretations of events."