Let x0 of type ι be given.
Let x1 of type ι be given.
Apply set_ext with
e76d4.. (aae7a.. x0 x1),
x0 leaving 2 subgoals.
Let x2 of type ι be given.
Apply unknownprop_b1414c697c2703ac73d6fa127ee3926e9277e931814b567c42055c77ff2c2420 with
x0,
x1,
x2.
Apply unknownprop_1af9accd96c3abdabaa4f49f1ec8c648f52e722ea8b5a229f61aaf88b5e0cf83 with
aae7a.. x0 x1,
x2.
The subproof is completed by applying H0.
Let x2 of type ι be given.
Apply unknownprop_2d54d63a5e4d5796d82f12814bbf1a53182ea69c9dcdd3b0c9a4eacfdc2de2dc with
aae7a.. x0 x1,
x2.
Apply unknownprop_06cf747e8d9f0e35f7afc6431ac124a9c5ccd5d57328e22bb582431e9562acba with
x0,
x1,
x2.
The subproof is completed by applying H0.