∀ {R : Type u_1} {a b c re imI imJ imK re_1 imI_1 imJ_1 imK_1 : R},
  { re := re, imI := imI, imJ := imJ, imK := imK } = { re := re_1, imI := imI_1, imJ := imJ_1, imK := imK_1 } →
    re = re_1 ∧ imI = imI_1 ∧ imJ = imJ_1 ∧ imK = imK_1