Follow

This teaching of "CRT" is going too far!

Today little Güñthër came home and said:
"Given n₁..nₖ ∈ ℤ, nᵢ pairwise coprime, and a₁...aₖ ∈ ℤ,
x ≡ a₁ (mod n₁)

x ≡ aₖ (mod nₖ)

uniquely determines x mod N, where N = ∏nᵢ"

and our dog started crying! Parents should have the *choice* for their children to learn about ring isomorphisms!

Sign in to participate in the conversation
Fosstodon

Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.