can you prove it question on a vintage slate blackboard

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can you prove it question on a vintage slate blackboard

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Size: 5100px × 3624px
Photo credit: © Marek Uliasz / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: blackboard, chalk, concept, data, evidence, fact, isolated, proof, prove, question, text, truth, verify, vintage