provably.

In a way that can be established by an applicable proof.

Use it for

Words that belong together

• provably correct
• provably impossible

On the page

The algorithm was provably correct under the stated input assumptions.

The task was provably impossible within the specified formal constraints.

Usage notes

Primary category: analysis / argumentation / evidence. Forms: Invariable adverb; use more or most only where natural. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: evidence assessment, qualification, argument critique, assumption analysis. Disciplines: argumentation, logic, research interpretation, formal writing. Commonness: moderately common.