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Theorem del1

⊦ ordered<(x) → ordered<(x -1l a)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 5
Proof steps: 14
Used lemmas: orderedls-ls, ls-o, ols-rec, cons, ls-e,
Used spec theorems:
- list-del/del1-n
Used simplifier rules:
- list-del/del1-y
- list/app
- list-del/in-01-01
- list/in-14
- list-del/del1-e
- list/app-02-ant
- list/e
- oelem/nll
- list/c-08
- list-del/del1-empty
- list/c-07
- list/c
- list/e-01
- list/a
- list/in-rec
- list-data/elim-list-c