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Proof step 11 from proof totality (previous step)

⊦ str = str0, str0 < str, str < str0

User applied rule apply lemma

And obtained the following new goals

Proof step 12:
⊦ str < str2 ∨ str = str2 ∨ str2 < str

Rule argument

spec: string-less name: val-total seq: ⊦ str < str2 ∨ str = str2 ∨ str2 < str subst: [str, str2] → [str, str0]

Additional information

Used terms: str, str0