Theorem. (t9_analort)
∀r1_analmetr : setsetsetprop, ∀k4_algstr_0 : setsetset, ∀k1_algstr_0 : setsetsetset, ∀l2_algstr_0 : setprop, ∀u1_rlvect_1 : setset, ∀k1_zfmisc_1 : setset, ∀k2_zfmisc_1 : setsetset, ∀l1_algstr_0 : setprop, ∀v1_xboole_0 : setprop, ∀m2_subset_1 : setsetsetprop, ∀v5_relat_1 : setsetprop, ∀esk11_2 : setsetset, ∀v1_relat_1 : setprop, ∀esk19_1 : setset, ∀r1_tarski : setsetprop, ∀v5_membered : setprop, ∀v3_membered : setprop, ∀v1_membered : setprop, ∀v13_struct_0 : setsetprop, ∀np__1 : set, ∀v1_int_1 : setprop, ∀v1_xcmplx_0 : setprop, ∀k1_xboole_0 : set, ∀k5_numbers : set, ∀v1_zfmisc_1 : setprop, ∀l2_struct_0 : setprop, ∀esk18_0 : set, ∀esk12_0 : set, ∀esk14_0 : set, ∀esk13_2 : setsetset, ∀esk8_0 : set, ∀esk6_0 : set, ∀esk7_0 : set, ∀esk5_0 : set, ∀esk9_0 : set, ∀v2_xxreal_0 : setprop, ∀k4_ordinal1 : set, ∀esk10_1 : setset, ∀esk17_0 : set, ∀esk1_0 : set, ∀esk2_0 : set, ∀esk3_0 : set, ∀esk4_0 : set, ∀v7_membered : setprop, ∀v1_funct_1 : setprop, ∀v1_finset_1 : setprop, ∀v8_struct_0 : setprop, ∀v1_xxreal_0 : setprop, ∀v1_rat_1 : setprop, ∀v7_ordinal1 : setprop, ∀v6_membered : setprop, ∀v2_membered : setprop, ∀v4_membered : setprop, ∀esk15_1 : setset, ∀l1_struct_0 : setprop, ∀esk16_1 : setset, ∀v7_struct_0 : setprop, ∀r2_hidden : setsetprop, ∀v1_funct_2 : setsetsetprop, ∀v4_relat_1 : setsetprop, ∀k1_binop_1 : setsetsetset, ∀k4_xcmplx_0 : setset, ∀v1_xreal_0 : setprop, ∀k1_numbers : set, ∀v2_struct_0 : setprop, ∀v2_rlvect_1 : setprop, ∀v4_rlvect_1 : setprop, ∀v6_rlvect_1 : setprop, ∀v8_rlvect_1 : setprop, ∀m1_subset_1 : setsetprop, ∀u1_struct_0 : setset, ∀l1_rlvect_1 : setprop, ∀v7_rlvect_1 : setprop, ∀v5_rlvect_1 : setprop, ∀v3_rlvect_1 : setprop, ∀v13_algstr_0 : setprop, ∀k3_rlvect_1 : setsetsetset, ∀k3_geomtrap : setsetsetsetset, ∀k1_rlvect_1 : setsetsetset, ∀k2_geomtrap : setsetsetsetset, ∀k1_real_1 : setset, ∀k2_analort : setsetsetsetset, (∀X2 X3 X4 X1, ((k3_rlvect_1 X1 (k1_rlvect_1 X1 X2 (k3_geomtrap X1 X2 X3 X4)) (k1_rlvect_1 X1 X3 (k1_real_1 (k2_geomtrap X1 X2 X3 X4)))) = (k2_analort X1 X2 X3 X4)False)(v2_struct_0 X1False)v13_algstr_0 X1v2_rlvect_1 X1v3_rlvect_1 X1v4_rlvect_1 X1v5_rlvect_1 X1v6_rlvect_1 X1v7_rlvect_1 X1v8_rlvect_1 X1l1_rlvect_1 X1m1_subset_1 X4 (u1_struct_0 X1)m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X4 X3 X2 X1, ((k3_rlvect_1 X1 (k1_rlvect_1 X1 X2 (k2_geomtrap X1 X2 X3 X4)) (k1_rlvect_1 X1 X3 (k3_geomtrap X1 X2 X3 X4))) = X4False)(v2_struct_0 X1False)v13_algstr_0 X1v2_rlvect_1 X1v3_rlvect_1 X1v4_rlvect_1 X1v5_rlvect_1 X1v6_rlvect_1 X1v7_rlvect_1 X1v8_rlvect_1 X1l1_rlvect_1 X1r1_analmetr X1 X2 X3m1_subset_1 X4 (u1_struct_0 X1)m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X6 X3 X4 X5 X2 X1, (X1 = (k2_geomtrap X2 X3 X4 X5)False)(v2_struct_0 X2False)X5 = (k3_rlvect_1 X2 (k1_rlvect_1 X2 X3 X1) (k1_rlvect_1 X2 X4 X6))v13_algstr_0 X2v2_rlvect_1 X2v3_rlvect_1 X2v4_rlvect_1 X2v5_rlvect_1 X2v6_rlvect_1 X2v7_rlvect_1 X2v8_rlvect_1 X2l1_rlvect_1 X2m1_subset_1 X6 k1_numbersm1_subset_1 X1 k1_numbersr1_analmetr X2 X3 X4m1_subset_1 X5 (u1_struct_0 X2)m1_subset_1 X4 (u1_struct_0 X2)m1_subset_1 X3 (u1_struct_0 X2)False)(∀X6 X3 X4 X5 X2 X1, (X1 = (k3_geomtrap X2 X3 X4 X5)False)(v2_struct_0 X2False)X5 = (k3_rlvect_1 X2 (k1_rlvect_1 X2 X3 X6) (k1_rlvect_1 X2 X4 X1))v13_algstr_0 X2v2_rlvect_1 X2v3_rlvect_1 X2v4_rlvect_1 X2v5_rlvect_1 X2v6_rlvect_1 X2v7_rlvect_1 X2v8_rlvect_1 X2l1_rlvect_1 X2m1_subset_1 X6 k1_numbersm1_subset_1 X1 k1_numbersr1_analmetr X2 X3 X4m1_subset_1 X5 (u1_struct_0 X2)m1_subset_1 X4 (u1_struct_0 X2)m1_subset_1 X3 (u1_struct_0 X2)False)(∀X2 X3 X4 X1, (v2_struct_0 X1False)(m1_subset_1 (k2_analort X1 X2 X3 X4) (u1_struct_0 X1)False)v13_algstr_0 X1v2_rlvect_1 X1v3_rlvect_1 X1v4_rlvect_1 X1v5_rlvect_1 X1v6_rlvect_1 X1v7_rlvect_1 X1v8_rlvect_1 X1l1_rlvect_1 X1m1_subset_1 X4 (u1_struct_0 X1)m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X3 X4 X1, (v2_struct_0 X1False)(m1_subset_1 (k2_geomtrap X1 X2 X3 X4) k1_numbersFalse)v13_algstr_0 X1v2_rlvect_1 X1v3_rlvect_1 X1v4_rlvect_1 X1v5_rlvect_1 X1v6_rlvect_1 X1v7_rlvect_1 X1v8_rlvect_1 X1l1_rlvect_1 X1m1_subset_1 X4 (u1_struct_0 X1)m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X3 X4 X1, (v2_struct_0 X1False)(m1_subset_1 (k3_geomtrap X1 X2 X3 X4) k1_numbersFalse)v13_algstr_0 X1v2_rlvect_1 X1v3_rlvect_1 X1v4_rlvect_1 X1v5_rlvect_1 X1v6_rlvect_1 X1v7_rlvect_1 X1v8_rlvect_1 X1l1_rlvect_1 X1m1_subset_1 X4 (u1_struct_0 X1)m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X3 X1, ((k1_algstr_0 X1 (k4_algstr_0 X1 X3) (k4_algstr_0 X1 X2)) = (k4_algstr_0 X1 (k1_algstr_0 X1 X2 X3))False)(v2_struct_0 X1False)v13_algstr_0 X1v3_rlvect_1 X1v4_rlvect_1 X1l2_algstr_0 X1m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X3 X1 X2, ((k1_rlvect_1 X2 (k4_algstr_0 X2 X3) X1) = (k4_algstr_0 X2 (k1_rlvect_1 X2 X3 X1))False)(v2_struct_0 X2False)v13_algstr_0 X2v2_rlvect_1 X2v3_rlvect_1 X2v4_rlvect_1 X2v5_rlvect_1 X2v6_rlvect_1 X2v7_rlvect_1 X2v8_rlvect_1 X2l1_rlvect_1 X2v1_xreal_0 X1m1_subset_1 X3 (u1_struct_0 X2)False)(∀X1, (m1_subset_1 (u1_rlvect_1 X1) (k1_zfmisc_1 (k2_zfmisc_1 (k2_zfmisc_1 k1_numbers (u1_struct_0 X1)) (u1_struct_0 X1)))False)l1_rlvect_1 X1False)(∀X3 X1 X2, ((k1_rlvect_1 X2 (k4_algstr_0 X2 X3) X1) = (k1_rlvect_1 X2 X3 (k4_xcmplx_0 X1))False)(v2_struct_0 X2False)v13_algstr_0 X2v2_rlvect_1 X2v3_rlvect_1 X2v4_rlvect_1 X2v5_rlvect_1 X2v6_rlvect_1 X2v7_rlvect_1 X2v8_rlvect_1 X2l1_rlvect_1 X2v1_xreal_0 X1m1_subset_1 X3 (u1_struct_0 X2)False)(∀X3 X2 X1, (m1_subset_1 (k3_rlvect_1 X1 X2 X3) (u1_struct_0 X1)False)v2_rlvect_1 X1l1_algstr_0 X1m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X3 X1, (m1_subset_1 (k1_algstr_0 X1 X2 X3) (u1_struct_0 X1)False)l1_algstr_0 X1m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X3 X2 X1, ((k3_rlvect_1 X1 X2 X3) = (k1_algstr_0 X1 X2 X3)False)v2_rlvect_1 X1l1_algstr_0 X1m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X3 X2 X1, ((k3_rlvect_1 X1 X2 X3) = (k3_rlvect_1 X1 X3 X2)False)v2_rlvect_1 X1l1_algstr_0 X1m1_subset_1 X3 (u1_struct_0 X1)m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X3 X1, (v2_struct_0 X1False)(m1_subset_1 (k1_rlvect_1 X1 X2 X3) (u1_struct_0 X1)False)l1_rlvect_1 X1v1_xreal_0 X3m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X3 X1, ((k1_binop_1 (u1_rlvect_1 X1) X3 X2) = (k1_rlvect_1 X1 X2 X3)False)(v2_struct_0 X1False)l1_rlvect_1 X1v1_xreal_0 X3m1_subset_1 X2 (u1_struct_0 X1)False)(∀X1 X3 X2, (v1_xboole_0 X2False)(v1_xboole_0 X1False)(m1_subset_1 X3 X1False)m2_subset_1 X3 X1 X2m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X2 X1 X3, (v1_xboole_0 X3False)(v1_xboole_0 X2False)(m1_subset_1 X1 X3False)m2_subset_1 X1 X2 X3m1_subset_1 X3 (k1_zfmisc_1 X2)False)(∀X3 X1 X2, (v5_relat_1 X1 X2False)m1_subset_1 X1 (k1_zfmisc_1 (k2_zfmisc_1 X3 X2))False)(∀X3 X1 X2, (v4_relat_1 X1 X2False)m1_subset_1 X1 (k1_zfmisc_1 (k2_zfmisc_1 X2 X3))False)(∀X1 X3 X2, (v1_xboole_0 X2False)v1_xboole_0 X1m1_subset_1 X2 (k1_zfmisc_1 (k2_zfmisc_1 X1 X3))False)(∀X1 X3 X2, (v1_xboole_0 X2False)v1_xboole_0 X1m1_subset_1 X2 (k1_zfmisc_1 (k2_zfmisc_1 X3 X1))False)(∀X1 X2, (v1_xboole_0 X2False)(v1_xboole_0 X1False)(m2_subset_1 (esk11_2 X1 X2) X1 X2False)m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X2 X1 X3, (v1_xboole_0 X3False)(v1_xboole_0 X2False)(m2_subset_1 X1 X3 X2False)m1_subset_1 X1 X2m1_subset_1 X2 (k1_zfmisc_1 X3)False)(∀X3 X2 X1, (v1_relat_1 X1False)m1_subset_1 X1 (k1_zfmisc_1 (k2_zfmisc_1 X2 X3))False)(∀X1, (v1_funct_2 (u1_rlvect_1 X1) (k2_zfmisc_1 k1_numbers (u1_struct_0 X1)) (u1_struct_0 X1)False)l1_rlvect_1 X1False)(∀X2 X1, (m1_subset_1 (k4_algstr_0 X1 X2) (u1_struct_0 X1)False)l2_algstr_0 X1m1_subset_1 X2 (u1_struct_0 X1)False)(∀X2 X1 X3, (m1_subset_1 X1 X3False)r2_hidden X1 X2m1_subset_1 X2 (k1_zfmisc_1 X3)False)(∀X2 X1 X3, v1_xboole_0 X3r2_hidden X1 X2m1_subset_1 X2 (k1_zfmisc_1 X3)False)(∀X1, (v7_struct_0 X1False)(m1_subset_1 (esk16_1 X1) (k1_zfmisc_1 (u1_struct_0 X1))False)l1_struct_0 X1False)(∀X1, (v2_struct_0 X1False)(m1_subset_1 (esk19_1 X1) (k1_zfmisc_1 (u1_struct_0 X1))False)l1_struct_0 X1False)(∀X1, (v2_struct_0 X1False)(m1_subset_1 (esk15_1 X1) (k1_zfmisc_1 (u1_struct_0 X1))False)l1_struct_0 X1False)(∀X2 X1, (r1_tarski X1 X2False)m1_subset_1 X1 (k1_zfmisc_1 X2)False)(∀X2 X1, r2_hidden X2 X1r2_hidden X1 X2False)(∀X1 X2, (v5_membered X2False)v5_membered X1m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X1 X2, (v4_membered X2False)v4_membered X1m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X1 X2, (v3_membered X2False)v3_membered X1m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X1 X2, (v2_membered X2False)v2_membered X1m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X1 X2, (v1_membered X2False)v1_membered X1m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X1 X2, (v6_membered X2False)v6_membered X1m1_subset_1 X2 (k1_zfmisc_1 X1)False)(∀X2 X1, (m1_subset_1 X1 (k1_zfmisc_1 X2)False)r1_tarski X1 X2False)(∀X1 X2, (v1_xboole_0 X2False)(r2_hidden X1 X2False)m1_subset_1 X1 X2False)(∀X1, (m1_subset_1 (k1_real_1 X1) k1_numbersFalse)m1_subset_1 X1 k1_numbersFalse)(∀X2 X1, (m1_subset_1 X1 X2False)r2_hidden X1 X2False)(∀X1, v2_struct_0 X1l1_struct_0 X1v13_struct_0 X1 np__1False)(∀X1 X2, (v7_ordinal1 X2False)v6_membered X1m1_subset_1 X2 X1False)(∀X1 X2, (v1_int_1 X2False)v5_membered X1m1_subset_1 X2 X1False)(∀X1 X2, (v1_rat_1 X2False)v4_membered X1m1_subset_1 X2 X1False)(∀X1 X2, (v1_xreal_0 X2False)v3_membered X1m1_subset_1 X2 X1False)(∀X1 X2, (v1_xxreal_0 X2False)v2_membered X1m1_subset_1 X2 X1False)(∀X1 X2, (v1_xcmplx_0 X2False)v1_membered X1m1_subset_1 X2 X1False)(∀X1, (v7_struct_0 X1False)l1_struct_0 X1v13_struct_0 X1 np__1False)(∀X1, (v2_struct_0 X1False)l1_struct_0 X1v13_struct_0 X1 k1_xboole_0False)(∀X1, (v3_membered X1False)m1_subset_1 X1 (k1_zfmisc_1 k1_numbers)False)(∀X1, (v6_membered X1False)m1_subset_1 X1 (k1_zfmisc_1 k5_numbers)False)(∀X1, (v2_struct_0 X1False)(v13_struct_0 X1 np__1False)l1_struct_0 X1v7_struct_0 X1False)(∀X1, ((k1_real_1 (k1_real_1 X1)) = X1False)m1_subset_1 X1 k1_numbersFalse)(∀X1 X2, v1_xboole_0 X2r2_hidden X1 X2False)(∀X1, ((k1_real_1 X1) = (k4_xcmplx_0 X1)False)m1_subset_1 X1 k1_numbersFalse)(∀X1, (v8_struct_0 X1False)l1_struct_0 X1v1_finset_1 (u1_struct_0 X1)False)(∀X1, (v7_struct_0 X1False)l1_struct_0 X1v1_zfmisc_1 (esk16_1 X1)False)(∀X1, (v7_struct_0 X1False)l1_struct_0 X1v1_zfmisc_1 (u1_struct_0 X1)False)(∀X1, (v2_struct_0 X1False)l1_struct_0 X1v1_xboole_0 (esk19_1 X1)False)(∀X1, (v2_struct_0 X1False)l1_struct_0 X1v1_xboole_0 (esk15_1 X1)False)(∀X1, (v2_struct_0 X1False)l1_struct_0 X1v1_xboole_0 (u1_struct_0 X1)False)(∀X1, (v13_struct_0 X1 k1_xboole_0False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, (v1_finset_1 (u1_struct_0 X1)False)l1_struct_0 X1v8_struct_0 X1False)(∀X1, (v1_zfmisc_1 (u1_struct_0 X1)False)l1_struct_0 X1v7_struct_0 X1False)(∀X1, (v1_xboole_0 (u1_struct_0 X1)False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, (v6_membered X1False)m1_subset_1 X1 k5_numbersFalse)(∀X1, (v2_struct_0 X1False)(v1_zfmisc_1 (esk15_1 X1)False)l1_struct_0 X1False)(∀X1, (v8_struct_0 X1False)l1_struct_0 X1v7_struct_0 X1False)(∀X1, (v8_struct_0 X1False)l1_struct_0 X1v7_struct_0 X1False)(∀X1, (v8_struct_0 X1False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, (v8_struct_0 X1False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, (v7_struct_0 X1False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, (v7_struct_0 X1False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, (v7_struct_0 X1False)v2_struct_0 X1l1_struct_0 X1False)(∀X1, ((k4_xcmplx_0 (k4_xcmplx_0 X1)) = X1False)v1_xcmplx_0 X1False)(∀X1, (v1_funct_1 (u1_rlvect_1 X1)False)l1_rlvect_1 X1False)(∀X1, (v1_xcmplx_0 (k4_xcmplx_0 X1)False)v1_xcmplx_0 X1False)(∀X2 X1, (X1 = X2False)v1_xboole_0 X2v1_xboole_0 X1False)(∀X1, (l2_struct_0 X1False)l2_algstr_0 X1False)(∀X1, (l2_algstr_0 X1False)l1_rlvect_1 X1False)(∀X1, (l1_algstr_0 X1False)l2_algstr_0 X1False)(∀X1, (v7_membered X1False)v1_xboole_0 X1False)(∀X1, (v5_membered X1False)v6_membered X1False)(∀X1, (v4_membered X1False)v5_membered X1False)(∀X1, (v3_membered X1False)v4_membered X1False)(∀X1, (v2_membered X1False)v3_membered X1False)(∀X1, (v1_membered X1False)v3_membered X1False)(∀X1, (v6_membered X1False)v1_xboole_0 X1False)(∀X1, (l1_struct_0 X1False)l2_struct_0 X1False)(∀X1, (l1_struct_0 X1False)l1_algstr_0 X1False)(∀X1, (X1 = k1_xboole_0False)v1_xboole_0 X1False)((k2_analort esk1_0 esk2_0 esk3_0 (k4_algstr_0 esk1_0 esk4_0)) = (k4_algstr_0 esk1_0 (k2_analort esk1_0 esk2_0 esk3_0 esk4_0))False)(v1_xboole_0 esk18_0False)(v1_xboole_0 esk17_0False)(v1_xboole_0 esk12_0False)(v1_xboole_0 np__1False)(v2_struct_0 esk14_0False)(v2_struct_0 esk1_0False)(∀X2 X1, (m1_subset_1 (esk13_2 X1 X2) (k1_zfmisc_1 (k2_zfmisc_1 X1 X2))False)False)((m2_subset_1 np__1 k1_numbers k5_numbersFalse)False)((r1_analmetr esk1_0 esk2_0 esk3_0False)False)(∀X2 X1, (v5_relat_1 (esk13_2 X1 X2) X2False)False)(∀X1 X2, (v4_relat_1 (esk13_2 X1 X2) X1False)False)(∀X1 X2, (v1_relat_1 (esk13_2 X1 X2)False)False)(∀X1 X2, (v1_xboole_0 (esk13_2 X1 X2)False)False)(∀X1, (m1_subset_1 (esk10_1 X1) X1False)False)((m1_subset_1 esk4_0 (u1_struct_0 esk1_0)False)False)((m1_subset_1 esk3_0 (u1_struct_0 esk1_0)False)False)((m1_subset_1 esk2_0 (u1_struct_0 esk1_0)False)False)((m1_subset_1 k5_numbers (k1_zfmisc_1 k1_numbers)False)False)(∀X1, (r1_tarski X1 X1False)False)((m1_subset_1 k1_xboole_0 k4_ordinal1False)False)((m1_subset_1 np__1 k1_numbersFalse)False)((m1_subset_1 np__1 k5_numbersFalse)False)(((k4_xcmplx_0 (k4_xcmplx_0 np__1)) = np__1False)False)((v2_xxreal_0 np__1False)False)((l2_struct_0 esk14_0False)False)((l2_struct_0 esk9_0False)False)((l2_algstr_0 esk8_0False)False)((l1_algstr_0 esk5_0False)False)((v7_membered esk18_0False)False)((v7_membered k4_ordinal1False)False)((v7_membered k1_numbersFalse)False)((v3_membered k1_numbersFalse)False)((v6_membered esk18_0False)False)((v6_membered esk17_0False)False)((v6_membered esk12_0False)False)((v6_membered k4_ordinal1False)False)((v7_struct_0 esk14_0False)False)((l1_struct_0 esk7_0False)False)((l1_rlvect_1 esk6_0False)False)((l1_rlvect_1 esk1_0False)False)((v8_rlvect_1 esk1_0False)False)((v7_rlvect_1 esk1_0False)False)((v6_rlvect_1 esk1_0False)False)((v5_rlvect_1 esk1_0False)False)((v4_rlvect_1 esk1_0False)False)((v3_rlvect_1 esk1_0False)False)((v2_rlvect_1 esk1_0False)False)((v13_algstr_0 esk1_0False)False)((k4_ordinal1 = k5_numbersFalse)False)False
Proof:
The rest of the proof is missing.