# OCME · Knowledge & practice explorer

302 MKO / 1,441 families / 360 batches / 36,000 questions.

36,000 second-context math/bilingual reviewed; 0 display/symbol-checked candidates. Source questions: candidate. English: ai_candidate. No new proof, Lean, SREG or training.

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## Question 18747: Every Dual-Basis Pairing Must Be a Kronecker Delta

- ID: `q-20261014-advance-20261105-r02-dual-vector-space-0047`; number: 18747
- Processing: second_context_reviewed
- MKO: [mko-dual-vector-space](/en/mko/mko-dual-vector-space/)
- Family: [qf-mod36-dual-dual-basis-certificate](/en/explore/?family=qf-mod36-dual-dual-basis-certificate)
- Batch: [batch-20261014-advance-20261105-r02-dual-vector-space-foundations](/en/explore/?batch=batch-20261014-advance-20261105-r02-dual-vector-space-foundations)
- [Derivation](/en/questions/q-20261014-advance-20261105-r02-dual-vector-space-0047/) / [Markdown](/en/questions/q-20261014-advance-20261105-r02-dual-vector-space-0047/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261105-r02-dual-vector-space-0047.json)