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# 5 Unusual Proofs
- URL: https://www.cascadepbs.org/show/infinite-series/episode/5-unusual-proofs-6uqf7s/
- Published: 2025-09-23T15:01:06.000Z
- Updated: 2025-09-23T15:30:15.000Z
- Description: How logic, induction, visuals, bijections, and a little algebra can prove surprising math theorems.
- Author: Cascade PBS Staff
- Tags: Infinite Series, Season 1, Episode 15, #ZZZ_Episode_1f3b5e0f-c9b8-4b55-a7d9-9c21cce94191, #episode, #ZZZ_Show_0efdefa6-fb6f-44e5-96f1-baf9a8c090e2, #geo-us, #v1.16

Find out how logic, induction, visuals, bijections, and a little algebra can prove some surprising math theorems.