# OCME · 知識與練習查找

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.

## 第 34346 題：無效的肯定後件

- ID: `q-20260921-proof-invalid-converse-0021`; number: 34346
- Processing: second_context_reviewed
- MKO: [mko-proof](/zh-Hant/mko/mko-proof/)
- Family: [qf-proof-invalid-converse](/zh-Hant/explore/?family=qf-proof-invalid-converse)
- Batch: [batch-20260921-proof-foundations](/zh-Hant/explore/?batch=batch-20260921-proof-foundations)
- [Derivation](/zh-Hant/questions/q-20260921-proof-invalid-converse-0021/) / [Markdown](/zh-Hant/questions/q-20260921-proof-invalid-converse-0021/index.md) / [JSON](/data/question-derivations/questions/q-20260921-proof-invalid-converse-0021.json)