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Theorem del-commute-dels

⊦ ¬ key ∈ ks → (ri ⊖ key) ⊖ ks = (ri ⊖ ks) ⊖ key

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 9
Proof steps: 20
Used lemmas: at-del-ro-nodata, at-dels-ro-data, at-del-ro-data, at-dels-ro-nodata, in-del-ro, in-dels-ro,
Used spec theorems:
- store/node-index/k-Extension
Used simplifier rules: