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Proof step 3 from proof write-new-app-nodups (previous step)

# ax0 = # ndx0, dups(ax0 + ax1), new(ax1, fs0[ax0, ndx0]) ⊦ dups(ax0), dups(ax1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: list-dup, inst: address-list-set name: dups-appex seq: ⊦ dups(ax + ax0) ↔ dups(ax) ∨ dups(ax0) ∨ (∃ adr. adr ∈ ax ∧ adr ∈ ax0) subst: [ax0, ax] → [ax1, ax0] flags: <all paths>

Additional information

Used terms: ax1, ax0