Let x0 of type ι be given.

Let x1 of type ι be given.

Let x2 of type ι → ι → ι be given.

Let x3 of type ι → ι → ι be given.

Let x4 of type ι → ι be given.

Let x5 of type ι → 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 H0: pack_b_u_e_e x0 x2 x4 x6 x8 = pack_b_u_e_e x1 x3 x5 x7 x9.

Claim L1: x1 = ap (pack_b_u_e_e x0 x2 x4 x6 x8) 0

Apply pack_b_u_e_e_0_eq with pack_b_u_e_e x0 x2 x4 x6 x8, x1, x3, x5, x7, x9.

The subproof is completed by applying H0.

Claim L2: x0 = x1

Apply L1 with λ x10 x11 . x0 = x11.

The subproof is completed by applying pack_b_u_e_e_0_eq2 with x0, x2, x4, x6, x8.

Apply and5I with x0 = x1, ∀ x10 . x10 ∈ x0 ⟶ ∀ x11 . x11 ∈ x0 ⟶ x2 x10 x11 = x3 x10 x11, ∀ x10 . x10 ∈ x0 ⟶ x4 x10 = x5 x10, x6 = x7, x8 = x9 leaving 5 subgoals.

The subproof is completed by applying L2.

Let x10 of type ι be given.

Assume H3: x10 ∈ x0.

Let x11 of type ι be given.

Assume H4: x11 ∈ x0.

Apply pack_b_u_e_e_1_eq2 with x0, x2, x4, x6, x8, x10, x11, λ x12 x13 . x13 = x3 x10 x11 leaving 3 subgoals.

The subproof is completed by applying H3.

The subproof is completed by applying H4.

Claim L5: x10 ∈ x1

Apply L2 with λ x12 x13 . x10 ∈ x12.

The subproof is completed by applying H3.

Claim L6: x11 ∈ x1

Apply L2 with λ x12 x13 . x11 ∈ x12.

The subproof is completed by applying H4.

Apply H0 with λ x12 x13 . decode_b (ap x13 1) x10 x11 = x3 x10 x11.

Let x12 of type ι → ι → ο be given.

Apply pack_b_u_e_e_1_eq2 with x1, x3, x5, x7, x9, x10, x11, λ x13 x14 . x12 x14 x13 leaving 2 subgoals.

The subproof is completed by applying L5.

The subproof is completed by applying L6.

Let x10 of type ι be given.

Assume H3: x10 ∈ x0.

Apply pack_b_u_e_e_2_eq2 with x0, x2, x4, x6, x8, x10, λ x11 x12 . x12 = x5 x10 leaving 2 subgoals.

The subproof is completed by applying H3.

Claim L4: x10 ∈ x1

Apply L2 with λ x11 x12 . x10 ∈ x11.

The subproof is completed by applying H3.

Apply H0 with λ x11 x12 . ap (ap x12 2) x10 = x5 x10.

Let x11 of type ι → ι → ο be given.

Apply pack_b_u_e_e_2_eq2 with x1, x3, x5, x7, x9, x10, λ x12 x13 . x11 x13 x12.

The subproof is completed by applying L4.

Apply pack_b_u_e_e_3_eq2 with x0, x2, x4, x6, x8, λ x10 x11 . x11 = x7.

Apply H0 with λ x10 x11 . ap x11 3 = x7.

Let x10 of type ι → ι → ο be given.

The subproof is completed by applying pack_b_u_e_e_3_eq2 with x1, x3, x5, x7, x9, λ x11 x12 . x10 x12 x11.

Apply pack_b_u_e_e_4_eq2 with x0, x2, x4, x6, x8, λ x10 x11 . x11 = x9.

Apply H0 with λ x10 x11 . ap x11 4 = x9.

Let x10 of type ι → ι → ο be given.

The subproof is completed by applying pack_b_u_e_e_4_eq2 with x1, x3, x5, x7, x9, λ x11 x12 . x10 x12 x11.

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Proofgold Proof