Proofgold Proof

pf
Let x0 of type ι be given. Assume H0: x0 ∈ real. Let x1 of type ι be given. Assume H1: x1 ∈ real. Apply CSNo_Re2 with x0, x1 leaving 2 subgoals. Apply real_SNo with x0. The subproof is completed by applying H0. Apply real_SNo with x1. The subproof is completed by applying H1. ■