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Proofgold Proof

pf
Let x0 of type ι be given.
Let x1 of type ι be given.
Assume H0: finite x0.
Apply H0 with atleastp x1 x0x0x1x0 = x1.
Let x2 of type ι be given.
Assume H1: (λ x3 . and (x3omega) (equip x0 x3)) x2.
Apply H1 with atleastp x1 x0x0x1x0 = x1.
Assume H2: x2omega.
Assume H3: equip x0 x2.
Assume H4: atleastp x1 x0.
Assume H5: x0x1.
Apply set_ext with x0, x1 leaving 2 subgoals.
The subproof is completed by applying H5.
Let x3 of type ι be given.
Assume H6: x3x1.
Claim L7: ...
...
Apply L7 with x3x0.
Let x4 of type ιι be given.
Assume H8: bij x2 x0 x4.
Apply bijE with x2, x0, x4, x3x0 leaving 2 subgoals.
The subproof is completed by applying H8.
Assume H9: ∀ x5 . x5x2x4 x5x0.
Assume H10: ∀ x5 . x5x2∀ x6 . x6x2x4 x5 = x4 x6x5 = x6.
Assume H11: ∀ x5 . x5x0∃ x6 . and (x6x2) (x4 x6 = x5).
Apply H3 with x3x0.
Let x5 of type ιι be given.
Assume H12: bij x0 x2 x5.
Apply bijE with x0, x2, x5, x3x0 leaving 2 subgoals.
The subproof is completed by applying H12.
Assume H13: ∀ x6 . x6x0x5 x6x2.
Assume H14: ∀ x6 . x6x0∀ x7 . x7x0x5 x6 = x5 x7x6 = x7.
Assume H15: ∀ x6 . x6x2∃ x7 . and (x7x0) (x5 x7 = x6).
Apply H4 with x3x0.
Let x6 of type ιι be given.
Assume H16: inj x1 x0 x6.
Apply H16 with x3x0.
Assume H17: ∀ x7 . x7x1x6 x7x0.
Assume H18: ∀ x7 . x7x1∀ x8 . x8x1x6 x7 = x6 x8x7 = x8.
Claim L19: ...
...
Apply bijE with x2, x2, λ x7 . x5 (x6 (x4 x7)), x3x0 leaving 2 subgoals.
The subproof is completed by applying L19.
Assume H20: ∀ x7 . x7x2x5 (x6 (x4 x7))x2.
Assume H21: ∀ x7 . x7x2∀ x8 . x8x2x5 (x6 (x4 x7)) = x5 (x6 (x4 x8))x7 = x8.
Assume H22: ∀ x7 . x7x2∃ x8 . and (x8x2) (x5 (x6 (x4 x8)) = x7).
Claim L23: ...
...
Apply H22 with x5 (x6 x3), x3x0 leaving 2 subgoals.
The subproof is completed by applying L23.
Let x7 of type ι be given.
Assume H24: (λ x8 . and (x8x2) (x5 (x6 (x4 x8)) = x5 (x6 x3))) x7.
Apply H24 with x3x0.
Assume H25: x7x2.
Assume H26: x5 (x6 ...) = ....
...