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Theorem ascsubseq-rest-notprec-first

⊦ ascsubseq(n ' + ix, x) ∧ m ∈ ix → (precedes(m, n, x) ↔ false)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 4
Used lemmas: precedes-trans, precedes-irrefl, ascsubseq-rec, ascsubseq-single,
Used spec theorems:
- Used simplifier rules:
  - list/indexseq/app
  - list/indexseq/in-empty
  - list/indexseq/in-17
  - list/indexseq/in-append
  - list/indexseq/a
  - list/indexseq/c