fact: Definition codeglue3 : O (Pushout (O_functor O codeleft01) (O_functor O Ocodeleft02)) <~> O (Pushout codeleft01 Ocodeleft02) := equiv_inverse (equiv_O_pushout O _ _).
imports: HoTT.Basics HoTT.Types Colimits.Pushout Colimits.SpanPushout Homotopy.Join.Core Truncations