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Proof step 1 from proof insert (conclusion)
⊦ insert(a, d, st) = st[a, d]
User applied rule insert lemma
And obtained the following new goals
Proof step 2
:
⊦ st[a, d] = insert(a, d, st)
Rule argument
spec: inst: name: insert-def seq: ⊦ st[a, d] = insert(a, d, st) subst: [st, a, d] → [st, a, d] flags: current, []
Additional information
Used terms: st, a, d