# 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.

1 results; page 1/1.

## Question 17303: A Clopen Witness Must Also Be Nontrivial

- ID: `q-20261014-advance-20261103-r05-connected-topological-space-0028`; number: 17303
- Processing: second_context_reviewed
- MKO: [mko-connected-topological-space](/en/mko/mko-connected-topological-space/)
- Family: [qf-mod34-connected-clopen-witness](/en/explore/?family=qf-mod34-connected-clopen-witness)
- Batch: [batch-20261014-advance-20261103-r05-connected-topological-space-foundations](/en/explore/?batch=batch-20261014-advance-20261103-r05-connected-topological-space-foundations)
- [Derivation](/en/questions/q-20261014-advance-20261103-r05-connected-topological-space-0028/) / [Markdown](/en/questions/q-20261014-advance-20261103-r05-connected-topological-space-0028/index.md) / [JSON](/data/question-derivations/questions/q-20261014-advance-20261103-r05-connected-topological-space-0028.json)