Proof
What Proof means in Mathematics A-Level, as defined for AQA, Pearson Edexcel, WJEC.
Definitions of Proof
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Proof in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A logically valid argument that begins with accepted assumptions and establishes a conclusion for every case covered by those assumptions.
A logically valid argument that starts from accepted assumptions or definitions and establishes a conclusion.
A logical, rigorous argument that demonstrates a mathematical statement is true for all possible cases.
Topics that use Proof
- A: Proof (AQA A-Level)
- Proof (Pearson Edexcel A-Level)
- Overarching themes - Mathematical argument, language and proof (WJEC A-Level)
Related terms
- Proof by deduction
- Proof by exhaustion
- counter-example
- Disproof by counter example
- Irrational Number
- Proof by contradiction
- Rational Number
- Domain
Using Proof in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge