Search for blocks/addresses/...
Proofgold Proof
pf
Apply pair_tuple_fun with
λ x0 x1 :
ι →
ι → ι
.
∀ x2 x3 x4 .
x4
∈
ap
x2
x3
⟶
x0
x3
x4
∈
x2
.
The subproof is completed by applying apE.
■