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Theorem wf-lexical

wf(wf1≪), wf(wf2≪) ⊦ wf(λ bc0, bc. wf1≪(bc0._1, bc._1) ∨ bc0._1 = bc._1 ∧ wf2≪(bc0._2, bc._2))

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: wf-lexicalind,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 14
Proof steps: 33
Used lemmas: wf-equiv-noethind,
Used spec theorems:
- Used simplifier rules: