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Theorem Diff-del-rw

⊦ (st -- a) \ s = (st \ s) -- a

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 4
Proof steps: 6
Used lemmas: Diff-get, Diff-ext,
Used spec theorems:
- store/k-Extension
- store/Del-in
Used simplifier rules: