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Proofgold Proof
pf
Let x0 of type
ι
be given.
Assume H0:
x0
∈
omega
.
Apply minus_SNo_minus_CSNo with
x0
,
λ x1 x2 .
x1
∈
int
leaving 2 subgoals.
Apply omega_SNo with
x0
.
The subproof is completed by applying H0.
Apply int_minus_SNo_omega with
x0
.
The subproof is completed by applying H0.
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