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Proof step 23 from proof theoremx-atleast (conclusion)

⊦ ∃ ix. # ix = # solix(x) ∧ ascsubseq(ix, x)

User applied rule insert lemma

And obtained the following new goals

Rule argument

spec: inst: name:precedesex-solix seq: ⊦ precedes∃(solix(x), x) subst:[x] → [x] flags:current, []

Additional information

[Concretesimprules(()), Extraterms((x))]