proposition: Lemma hq2eq1plus1 : 2 = 1 + 1.
proof: Proof. confirm_equal isdeceqhq. Qed.
imports: UniMath.Foundations.Preamble UniMath.MoreFoundations.Tactics UniMath.Topology.Prelim UniMath.NumberSystems.RationalNumbers UniMath.Algebra.Archimedean