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Proof step 20 from proof nu-is-UN (previous step)

⊦ S(x), f(λ x0. ¬ S(x0))(x0), S(x0), compl(f)(S)(x0)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: inst: name: compl-def seq: ⊦ compl(f)(S)(x) ↔ ¬ f(λ x0. ¬ S(x0))(x) subst: [x, S, f] → [x0, S, f] flags: rewrite, current

Additional information

Used terms: x0, S, f