leanprover-community / mathlib

  • Home
  • Zulip archive
  • API documentation
  • Lean web editor
  • Links

Zulip Chat Archive

Stream: new members

Topic: Bijection from a finite group


Brendan Seamas Murphy (Aug 24 2022 at 04:04):

I have some type A with elements x0, x1 : A and proofs x0 ≠ x1, ∀ x, x = x0 ∨ x = x1. What's the easiest way to turn this into an equivalence fin 2 ≃ A?


Last updated: May 02 2025 at 03:31 UTC

Theme Simple by wildflame © 2016 Powered by jekyll