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Proof step 1 from proof rm-rm (conclusion)

⊦ rmdup(rmdup(x)) = rmdup(x)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel> name: rm-eq seq: ⊦ ¬ dups(x) → rmdup(x) = x subst: [x] → [rmdup(x)] flags: <all paths>

Additional information

Used terms: rmdup(x)