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Proofgold Proof

pf
Let x0 of type ιο be given.
Let x1 of type ιιι be given.
Assume H0: ∀ x2 x3 . x0 x2x0 x3x0 (x1 x2 x3).
Assume H1: ∀ x2 x3 x4 . x0 x2x0 x3x0 x4x1 x2 (x1 x3 x4) = x1 x3 (x1 x2 x4).
Let x2 of type ι be given.
Let x3 of type ι be given.
Let x4 of type ι be given.
Let x5 of type ι be given.
Let x6 of type ι be given.
Let x7 of type ι be given.
Let x8 of type ι be given.
Let x9 of type ι be given.
Assume H2: x0 x2.
Assume H3: x0 x3.
Assume H4: x0 x4.
Assume H5: x0 x5.
Assume H6: x0 x6.
Assume H7: x0 x7.
Assume H8: x0 x8.
Assume H9: x0 x9.
Apply H1 with x2, x3, x1 x4 (x1 x5 (x1 x6 (x1 x7 (x1 x8 x9)))), λ x10 x11 . x11 = x1 x3 (x1 x2 (x1 x4 (x1 x5 (x1 x8 (x1 x6 (x1 x7 x9)))))) leaving 4 subgoals.
The subproof is completed by applying H2.
The subproof is completed by applying H3.
Apply H0 with x4, x1 x5 (x1 x6 (x1 x7 (x1 x8 x9))) leaving 2 subgoals.
The subproof is completed by applying H4.
Apply H0 with x5, x1 x6 (x1 x7 (x1 x8 x9)) leaving 2 subgoals.
The subproof is completed by applying H5.
Apply H0 with x6, x1 x7 (x1 x8 x9) leaving 2 subgoals.
The subproof is completed by applying H6.
Apply H0 with x7, x1 x8 x9 leaving 2 subgoals.
The subproof is completed by applying H7.
Apply H0 with x8, x9 leaving 2 subgoals.
The subproof is completed by applying H8.
The subproof is completed by applying H9.
set y10 to be ...
set y11 to be ...
Claim L10: ∀ x12 : ι → ο . x12 y11x12 y10
Let x12 of type ιο be given.
Assume H10: x12 (x3 x5 (x3 x4 (x3 x6 (x3 x7 (x3 y10 (x3 x8 (x3 x9 y11))))))).
set y13 to be ...
set y14 to be ...
set y15 to be ...
Claim L11: ∀ x16 : ι → ο . x16 y15x16 y14
Let x16 of type ιο be given.
Assume H11: x16 (x5 x6 (x5 x8 (x5 x9 (x5 x12 (x5 y10 (x5 y11 y13)))))).
set y17 to be ...
set y18 to be ...
set y19 to be ...
Claim L12: ∀ x20 : ι → ο . x20 y19x20 y18
Let x20 of type ιο be given.
Assume H12: x20 (x7 y10 (x7 y11 (x7 y14 (x7 x12 (x7 y13 y15))))).
set y21 to be ...
set y22 to be ...
set y23 to be ...
Claim L13: ∀ x24 : ι → ο . ...x24 ...
...
set y24 to be λ x24 x25 . y23 (x9 x12 x24) (x9 x12 x25)
Apply L13 with λ x25 . y24 x25 y23y24 y23 x25 leaving 2 subgoals.
Assume H14: y24 y23 y23.
The subproof is completed by applying H14.
The subproof is completed by applying L13.
set y20 to be λ x20 x21 . y19 (x7 x8 x20) (x7 x8 x21)
Apply L12 with λ x21 . y20 x21 y19y20 y19 x21 leaving 2 subgoals.
Assume H13: y20 y19 y19.
The subproof is completed by applying H13.
The subproof is completed by applying L12.
set y16 to be λ x16 x17 . y15 (x5 x7 x16) (x5 x7 x17)
Apply L11 with λ x17 . y16 x17 y15y16 y15 x17 leaving 2 subgoals.
Assume H12: y16 y15 y15.
The subproof is completed by applying H12.
The subproof is completed by applying L11.
Let x12 of type ιιο be given.
Apply L10 with λ x13 . x12 x13 y11x12 y11 x13.
Assume H11: x12 y11 y11.
The subproof is completed by applying H11.