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Theorem insperm-02

⊦ perm(ins≤(a, x + y), ins≤(a, x) + y)

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: 2
Proof steps: 7
Used lemmas: ins-y, ins-n, insperm, ins-e,
Used spec theorems:
- Used simplifier rules:
  - list/Nil
  - list-perm/ref
  - list-perm/sym-02
  - list-perm/app
  - list/a
  - list/c