## Bernt Michael Holmboe (1795 - 1850)

[Christopher] Hansteen declared that proofs should not be used in elementary teaching before it was necessary because, he argued, it invited students to memorize without understanding. To this, [Michael] Holmboe replied that one either has to prove all or nothing, as half a proof is worse than no proof.

Andreas Christiansen, Bernt Michael Holmboe (1795 1850) and his mathematics textbooks, *BSHM Bulletin* **24** (2009), 105-113.