Theorem. (t6_xregular)
∀v1_xboole_0 : setprop, ∀k3_tarski : setset, ∀esk22_1 : setset, ∀r1_xboole_0 : setsetprop, ∀esk26_1 : setset, ∀esk13_1 : setset, ∀esk9_2 : setsetset, ∀esk10_2 : setsetset, ∀esk20_2 : setsetset, ∀esk21_2 : setsetset, ∀esk16_2 : setsetset, ∀esk17_2 : setsetset, ∀esk14_2 : setsetset, ∀esk29_2 : setsetset, ∀esk1_0 : set, ∀esk2_1 : setset, ∀esk4_1 : setset, ∀k1_xboole_0 : set, ∀esk11_0 : set, ∀esk12_0 : set, ∀esk28_1 : setset, ∀esk3_1 : setset, ∀esk5_1 : setset, ∀esk6_1 : setset, ∀esk27_2 : setsetset, ∀esk15_2 : setsetset, ∀esk19_2 : setsetset, ∀esk25_2 : setsetset, ∀esk24_2 : setsetset, ∀esk8_3 : setsetsetset, ∀esk18_1 : setset, ∀esk23_1 : setset, ∀r2_hidden : setsetprop, ∀esk7_3 : setsetsetset, ∀k2_xboole_0 : setsetset, (∀X1 X3 X2, (X3 = (k2_xboole_0 X1 X2)False)r2_hidden (esk7_3 X1 X2 X3) X3r2_hidden (esk7_3 X1 X2 X3) X1False)(∀X2 X3 X1, (X3 = (k2_xboole_0 X1 X2)False)r2_hidden (esk7_3 X1 X2 X3) X3r2_hidden (esk7_3 X1 X2 X3) X2False)(∀X1 X3 X2, (X3 = (k2_xboole_0 X1 X2)False)(r2_hidden (esk7_3 X1 X2 X3) X3False)(r2_hidden (esk7_3 X1 X2 X3) X2False)(r2_hidden (esk7_3 X1 X2 X3) X1False)False)(∀X1 X2, (v1_xboole_0 X2False)(r1_xboole_0 X1 X2False)(r2_hidden X1 (esk22_1 X2)False)r2_hidden X1 (k3_tarski (k3_tarski (k3_tarski (k3_tarski (k3_tarski X2)))))False)(∀X1 X2, (v1_xboole_0 X2False)(r2_hidden X1 (k3_tarski (k3_tarski (k3_tarski (k3_tarski (k3_tarski X2)))))False)r2_hidden X1 (esk22_1 X2)False)(∀X3 X1 X2, (v1_xboole_0 X2False)(r1_xboole_0 X3 X2False)(r2_hidden X1 (esk26_1 X2)False)r2_hidden X3 X1r2_hidden X1 (k3_tarski (k3_tarski (k3_tarski (k3_tarski X2))))False)(∀X3 X4 X1 X2, (v1_xboole_0 X2False)(r1_xboole_0 X3 X2False)(r2_hidden X1 (esk23_1 X2)False)r2_hidden X4 X1r2_hidden X3 X4r2_hidden X1 (k3_tarski (k3_tarski (k3_tarski X2)))False)(∀X3 X6 X4 X5 X1 X2, (v1_xboole_0 X2False)(r1_xboole_0 X3 X2False)(r2_hidden X1 (esk13_1 X2)False)r2_hidden X6 X1r2_hidden X5 X6r2_hidden X4 X5r2_hidden X3 X4r2_hidden X1 (k3_tarski X2)False)(∀X3 X5 X4 X1 X2, (v1_xboole_0 X2False)(r1_xboole_0 X3 X2False)(r2_hidden X1 (esk18_1 X2)False)r2_hidden X5 X1r2_hidden X4 X5r2_hidden X3 X4r2_hidden X1 (k3_tarski (k3_tarski X2))False)(∀X3 X2 X1, (X2 = (k3_tarski X1)False)r2_hidden X3 X1r2_hidden (esk9_2 X1 X2) X3r2_hidden (esk9_2 X1 X2) X2False)(∀X1 X2 X3, (r2_hidden (esk8_3 X1 X2 X3) X1False)X2 = (k3_tarski X1)r2_hidden X3 X2False)(∀X2 X3 X1, (r2_hidden X1 (esk8_3 X2 X3 X1)False)X3 = (k3_tarski X2)r2_hidden X1 X3False)(∀X1 X2, (v1_xboole_0 X2False)(r2_hidden X1 (k3_tarski (k3_tarski (k3_tarski (k3_tarski X2))))False)r2_hidden X1 (esk26_1 X2)False)(∀X1 X2, (X2 = (k3_tarski X1)False)(r2_hidden (esk9_2 X1 X2) X2False)(r2_hidden (esk9_2 X1 X2) (esk10_2 X1 X2)False)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk24_2 X1 X2) (esk25_2 X1 X2)False)r2_hidden X2 (esk23_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk20_2 X1 X2) (esk21_2 X1 X2)False)r2_hidden X2 (esk18_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk19_2 X1 X2) (esk20_2 X1 X2)False)r2_hidden X2 (esk18_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk16_2 X1 X2) (esk17_2 X1 X2)False)r2_hidden X2 (esk13_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk15_2 X1 X2) (esk16_2 X1 X2)False)r2_hidden X2 (esk13_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk14_2 X1 X2) (esk15_2 X1 X2)False)r2_hidden X2 (esk13_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)r2_hidden X2 (esk26_1 X1)r1_xboole_0 (esk27_2 X1 X2) X1False)(∀X2 X1, (v1_xboole_0 X1False)r2_hidden X2 (esk23_1 X1)r1_xboole_0 (esk24_2 X1 X2) X1False)(∀X2 X1, (v1_xboole_0 X1False)r2_hidden X2 (esk18_1 X1)r1_xboole_0 (esk19_2 X1 X2) X1False)(∀X2 X1, (v1_xboole_0 X1False)r2_hidden X2 (esk13_1 X1)r1_xboole_0 (esk14_2 X1 X2) X1False)(∀X1 X2, (v1_xboole_0 X2False)(r2_hidden X1 (k3_tarski (k3_tarski (k3_tarski X2)))False)r2_hidden X1 (esk23_1 X2)False)(∀X1 X2, (X2 = (k3_tarski X1)False)(r2_hidden (esk9_2 X1 X2) X2False)(r2_hidden (esk10_2 X1 X2) X1False)False)(∀X3 X2 X1, (r1_xboole_0 X1 (k2_xboole_0 X2 X3)False)r1_xboole_0 X1 X3r1_xboole_0 X1 X2False)(∀X3 X1 X2, (r1_xboole_0 X1 X2False)r1_xboole_0 X1 (k2_xboole_0 X2 X3)False)(∀X3 X1 X2, (r1_xboole_0 X1 X2False)r1_xboole_0 X1 (k2_xboole_0 X3 X2)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk27_2 X1 X2) X2False)r2_hidden X2 (esk26_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk25_2 X1 X2) X2False)r2_hidden X2 (esk23_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk21_2 X1 X2) X2False)r2_hidden X2 (esk18_1 X1)False)(∀X2 X1, (v1_xboole_0 X1False)(r2_hidden (esk17_2 X1 X2) X2False)r2_hidden X2 (esk13_1 X1)False)(∀X3 X2 X1 X4, (r2_hidden X1 X4False)(r2_hidden X1 X3False)X2 = (k2_xboole_0 X3 X4)r2_hidden X1 X2False)(∀X1 X2, (v1_xboole_0 X2False)(r2_hidden X1 (k3_tarski (k3_tarski X2))False)r2_hidden X1 (esk18_1 X2)False)(∀X3 X2 X1 X4, (r2_hidden X1 X4False)X4 = (k3_tarski X3)r2_hidden X2 X3r2_hidden X1 X2False)(∀X2 X1 X3, r2_hidden X1 X3r2_hidden X1 X2r1_xboole_0 X2 X3False)(∀X2 X4 X1 X3, (r2_hidden X1 X3False)X3 = (k2_xboole_0 X2 X4)r2_hidden X1 X2False)(∀X2 X4 X1 X3, (r2_hidden X1 X3False)X3 = (k2_xboole_0 X4 X2)r2_hidden X1 X2False)(∀X1 X2, (v1_xboole_0 X2False)r1_xboole_0 X1 X2r2_hidden X1 (esk22_1 X2)False)(∀X1 X2, (v1_xboole_0 X2False)(r2_hidden X1 (k3_tarski X2)False)r2_hidden X1 (esk13_1 X2)False)(∀X1 X2, (r1_xboole_0 X1 X2False)(r2_hidden (esk29_2 X1 X2) X1False)False)(∀X2 X1, (r1_xboole_0 X1 X2False)(r2_hidden (esk29_2 X1 X2) X2False)False)(∀X2 X1, (v1_xboole_0 X1False)v1_xboole_0 (k2_xboole_0 X1 X2)False)(∀X2 X1, (v1_xboole_0 X1False)v1_xboole_0 (k2_xboole_0 X2 X1)False)(∀X1, r2_hidden X1 esk1_0r1_xboole_0 (esk2_1 X1) esk1_0False)(∀X1, (r2_hidden (esk5_1 X1) (esk6_1 X1)False)r2_hidden X1 esk1_0False)(∀X1, (r2_hidden (esk4_1 X1) (esk5_1 X1)False)r2_hidden X1 esk1_0False)(∀X1, (r2_hidden (esk3_1 X1) (esk4_1 X1)False)r2_hidden X1 esk1_0False)(∀X1, (r2_hidden (esk2_1 X1) (esk3_1 X1)False)r2_hidden X1 esk1_0False)(∀X2 X1, r2_hidden X2 X1r2_hidden X1 X2False)(∀X1, (r2_hidden (esk6_1 X1) X1False)r2_hidden X1 esk1_0False)(∀X2 X1, (r1_xboole_0 X2 X1False)r1_xboole_0 X1 X2False)(∀X1 X2, v1_xboole_0 X2r2_hidden X1 X2False)(∀X1, (v1_xboole_0 X1False)(r1_xboole_0 (esk28_1 X1) X1False)False)(∀X1, (v1_xboole_0 X1False)(r2_hidden (esk28_1 X1) X1False)False)(∀X2 X1, (X1 = X2False)v1_xboole_0 X2v1_xboole_0 X1False)(∀X1, (X1 = k1_xboole_0False)v1_xboole_0 X1False)(v1_xboole_0 esk12_0False)(v1_xboole_0 esk1_0False)(∀X2 X3 X1, ((k2_xboole_0 (k2_xboole_0 X1 X2) X3) = (k2_xboole_0 X1 (k2_xboole_0 X2 X3))False)False)(∀X2 X1, ((k2_xboole_0 X1 X2) = (k2_xboole_0 X2 X1)False)False)(∀X1, ((k2_xboole_0 X1 X1) = X1False)False)(∀X1, ((k2_xboole_0 X1 k1_xboole_0) = X1False)False)((v1_xboole_0 esk11_0False)False)((v1_xboole_0 k1_xboole_0False)False)False
Proof:
The rest of the proof is missing.