Let x0 of type ι be given.
Apply real_recip_SNo_lem1 with
x0,
recip_SNo_pos x0 ∈ real leaving 4 subgoals.
Apply real_SNo with
x0.
The subproof is completed by applying H0.
The subproof is completed by applying H0.
The subproof is completed by applying H1.
The subproof is completed by applying H2.